1256284680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{487}}^1$

素因数の和:628

約数の個数: 256

約数和(自身を含む): 4486164480

約数和(自身を除く): 3229879800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 56, 60, 70, 74, 83, 84, 105, 111, 120, 140, 148, 166, 168, 185, 210, 222, 249, 259, 280, 296, 332, 370, 415, 420, 444, 487, 498, 518, 555, 581, 664, 740, 777, 830, 840, 888, 974, 996, 1036, 1110, 1162, 1245, 1295, 1461, 1480, 1554, 1660, 1743, 1948, 1992, 2072, 2220, 2324, 2435, 2490, 2590, 2905, 2922, 3071, 3108, 3320, 3409, 3486, 3885, 3896, 4440, 4648, 4870, 4980, 5180, 5810, 5844, 6142, 6216, 6818, 6972, 7305, 7770, 8715, 9213, 9740, 9960, 10227, 10360, 11620, 11688, 12284, 13636, 13944, 14610, 15355, 15540, 17045, 17430, 18019, 18426, 19480, 20454, 21497, 23240, 24568, 27272, 29220, 30710, 31080, 34090, 34860, 36038, 36852, 40421, 40908, 42994, 46065, 51135, 54057, 58440, 61420, 64491, 68180, 69720, 72076, 73704, 80842, 81816, 85988, 90095, 92130, 102270, 107485, 108114, 121263, 122840, 126133, 128982, 136360, 144152, 161684, 171976, 180190, 184260, 202105, 204540, 214970, 216228, 242526, 252266, 257964, 270285, 282947, 322455, 323368, 360380, 368520, 378399, 404210, 409080, 429940, 432456, 485052, 504532, 515928, 540570, 565894, 606315, 630665, 644910, 720760, 756798, 808420, 848841, 859880, 970104, 1009064, 1081140, 1131788, 1212630, 1261330, 1289820, 1414735, 1495577, 1513596, 1616840, 1697682, 1891995, 2162280, 2263576, 2425260, 2522660, 2579640, 2829470, 2991154, 3027192, 3395364, 3783990, 4244205, 4486731, 4850520, 5045320, 5658940, 5982308, 6790728, 7477885, 7567980, 8488410, 8973462, 10469039, 11317880, 11964616, 14955770, 15135960, 16976820, 17946924, 20938078, 22433655, 29911540, 31407117, 33953640, 35893848, 41876156, 44867310, 52345195, 59823080, 62814234, 83752312, 89734620, 104690390, 125628468, 157035585, 179469240, 209380780, 251256936, 314071170, 418761560, 628142340, 1256284680]

約数ペア:

[(1, 1256284680), (2, 628142340), (3, 418761560), (4, 314071170), (5, 251256936), (6, 209380780), (7, 179469240), (8, 157035585), (10, 125628468), (12, 104690390), (14, 89734620), (15, 83752312), (20, 62814234), (21, 59823080), (24, 52345195), (28, 44867310), (30, 41876156), (35, 35893848), (37, 33953640), (40, 31407117), (42, 29911540), (56, 22433655), (60, 20938078), (70, 17946924), (74, 16976820), (83, 15135960), (84, 14955770), (105, 11964616), (111, 11317880), (120, 10469039), (140, 8973462), (148, 8488410), (166, 7567980), (168, 7477885), (185, 6790728), (210, 5982308), (222, 5658940), (249, 5045320), (259, 4850520), (280, 4486731), (296, 4244205), (332, 3783990), (370, 3395364), (415, 3027192), (420, 2991154), (444, 2829470), (487, 2579640), (498, 2522660), (518, 2425260), (555, 2263576), (581, 2162280), (664, 1891995), (740, 1697682), (777, 1616840), (830, 1513596), (840, 1495577), (888, 1414735), (974, 1289820), (996, 1261330), (1036, 1212630), (1110, 1131788), (1162, 1081140), (1245, 1009064), (1295, 970104), (1461, 859880), (1480, 848841), (1554, 808420), (1660, 756798), (1743, 720760), (1948, 644910), (1992, 630665), (2072, 606315), (2220, 565894), (2324, 540570), (2435, 515928), (2490, 504532), (2590, 485052), (2905, 432456), (2922, 429940), (3071, 409080), (3108, 404210), (3320, 378399), (3409, 368520), (3486, 360380), (3885, 323368), (3896, 322455), (4440, 282947), (4648, 270285), (4870, 257964), (4980, 252266), (5180, 242526), (5810, 216228), (5844, 214970), (6142, 204540), (6216, 202105), (6818, 184260), (6972, 180190), (7305, 171976), (7770, 161684), (8715, 144152), (9213, 136360), (9740, 128982), (9960, 126133), (10227, 122840), (10360, 121263), (11620, 108114), (11688, 107485), (12284, 102270), (13636, 92130), (13944, 90095), (14610, 85988), (15355, 81816), (15540, 80842), (17045, 73704), (17430, 72076), (18019, 69720), (18426, 68180), (19480, 64491), (20454, 61420), (21497, 58440), (23240, 54057), (24568, 51135), (27272, 46065), (29220, 42994), (30710, 40908), (31080, 40421), (34090, 36852), (34860, 36038)]