51235380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:223

約数の個数: 216

約数和(自身を含む): 186856488

約数和(自身を除く): 135621108

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 37, 42, 45, 49, 60, 63, 70, 74, 84, 90, 98, 105, 111, 126, 140, 147, 148, 157, 180, 185, 196, 210, 222, 245, 252, 259, 294, 314, 315, 333, 370, 420, 441, 444, 471, 490, 518, 555, 588, 628, 630, 666, 735, 740, 777, 785, 882, 942, 980, 1036, 1099, 1110, 1260, 1295, 1332, 1413, 1470, 1554, 1570, 1665, 1764, 1813, 1884, 2198, 2205, 2220, 2331, 2355, 2590, 2826, 2940, 3108, 3140, 3297, 3330, 3626, 3885, 4396, 4410, 4662, 4710, 5180, 5439, 5495, 5652, 5809, 6594, 6660, 7065, 7252, 7693, 7770, 8820, 9065, 9324, 9420, 9891, 10878, 10990, 11618, 11655, 13188, 14130, 15386, 15540, 16317, 16485, 17427, 18130, 19782, 21756, 21980, 23079, 23236, 23310, 27195, 28260, 29045, 30772, 32634, 32970, 34854, 36260, 38465, 39564, 40663, 46158, 46620, 49455, 52281, 54390, 58090, 65268, 65940, 69237, 69708, 76930, 81326, 81585, 87135, 92316, 98910, 104562, 108780, 115395, 116180, 121989, 138474, 153860, 162652, 163170, 174270, 197820, 203315, 209124, 230790, 243978, 261405, 276948, 284641, 326340, 346185, 348540, 365967, 406630, 461580, 487956, 522810, 569282, 609945, 692370, 731934, 813260, 853923, 1045620, 1138564, 1219890, 1384740, 1423205, 1463868, 1707846, 1829835, 2439780, 2561769, 2846410, 3415692, 3659670, 4269615, 5123538, 5692820, 7319340, 8539230, 10247076, 12808845, 17078460, 25617690, 51235380]

約数ペア:

[(1, 51235380), (2, 25617690), (3, 17078460), (4, 12808845), (5, 10247076), (6, 8539230), (7, 7319340), (9, 5692820), (10, 5123538), (12, 4269615), (14, 3659670), (15, 3415692), (18, 2846410), (20, 2561769), (21, 2439780), (28, 1829835), (30, 1707846), (35, 1463868), (36, 1423205), (37, 1384740), (42, 1219890), (45, 1138564), (49, 1045620), (60, 853923), (63, 813260), (70, 731934), (74, 692370), (84, 609945), (90, 569282), (98, 522810), (105, 487956), (111, 461580), (126, 406630), (140, 365967), (147, 348540), (148, 346185), (157, 326340), (180, 284641), (185, 276948), (196, 261405), (210, 243978), (222, 230790), (245, 209124), (252, 203315), (259, 197820), (294, 174270), (314, 163170), (315, 162652), (333, 153860), (370, 138474), (420, 121989), (441, 116180), (444, 115395), (471, 108780), (490, 104562), (518, 98910), (555, 92316), (588, 87135), (628, 81585), (630, 81326), (666, 76930), (735, 69708), (740, 69237), (777, 65940), (785, 65268), (882, 58090), (942, 54390), (980, 52281), (1036, 49455), (1099, 46620), (1110, 46158), (1260, 40663), (1295, 39564), (1332, 38465), (1413, 36260), (1470, 34854), (1554, 32970), (1570, 32634), (1665, 30772), (1764, 29045), (1813, 28260), (1884, 27195), (2198, 23310), (2205, 23236), (2220, 23079), (2331, 21980), (2355, 21756), (2590, 19782), (2826, 18130), (2940, 17427), (3108, 16485), (3140, 16317), (3297, 15540), (3330, 15386), (3626, 14130), (3885, 13188), (4396, 11655), (4410, 11618), (4662, 10990), (4710, 10878), (5180, 9891), (5439, 9420), (5495, 9324), (5652, 9065), (5809, 8820), (6594, 7770), (6660, 7693), (7065, 7252)]