221520420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:464

約数の個数: 240

約数和(自身を含む): 784498176

約数和(自身を除く): 562977756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 31, 33, 36, 44, 45, 54, 55, 60, 62, 66, 81, 90, 93, 99, 108, 110, 124, 132, 135, 155, 162, 165, 180, 186, 198, 220, 270, 279, 297, 310, 324, 330, 341, 372, 396, 401, 405, 465, 495, 540, 558, 594, 620, 660, 682, 802, 810, 837, 891, 930, 990, 1023, 1116, 1188, 1203, 1364, 1395, 1485, 1604, 1620, 1674, 1705, 1782, 1860, 1980, 2005, 2046, 2406, 2511, 2790, 2970, 3069, 3348, 3410, 3564, 3609, 4010, 4092, 4185, 4411, 4455, 4812, 5022, 5115, 5580, 5940, 6015, 6138, 6820, 7218, 8020, 8370, 8822, 8910, 9207, 10044, 10230, 10827, 12030, 12276, 12431, 12555, 13233, 14436, 15345, 16740, 17644, 17820, 18045, 18414, 20460, 21654, 22055, 24060, 24862, 25110, 26466, 27621, 30690, 32481, 36090, 36828, 37293, 39699, 43308, 44110, 46035, 49724, 50220, 52932, 54135, 55242, 61380, 62155, 64962, 66165, 72180, 74586, 79398, 88220, 92070, 108270, 110484, 111879, 119097, 124310, 129924, 132330, 136741, 138105, 149172, 158796, 162405, 184140, 186465, 198495, 216540, 223758, 238194, 248620, 264660, 273482, 276210, 324810, 335637, 357291, 372930, 396990, 410223, 447516, 476388, 546964, 552420, 559395, 595485, 649620, 671274, 683705, 714582, 745860, 793980, 820446, 1006911, 1118790, 1190970, 1230669, 1342548, 1367410, 1429164, 1640892, 1678185, 1786455, 2013822, 2051115, 2237580, 2381940, 2461338, 2734820, 3356370, 3572910, 3692007, 4027644, 4102230, 4922676, 5034555, 6153345, 6712740, 7145820, 7384014, 8204460, 10069110, 11076021, 12306690, 14768028, 18460035, 20138220, 22152042, 24613380, 36920070, 44304084, 55380105, 73840140, 110760210, 221520420]

約数ペア:

[(1, 221520420), (2, 110760210), (3, 73840140), (4, 55380105), (5, 44304084), (6, 36920070), (9, 24613380), (10, 22152042), (11, 20138220), (12, 18460035), (15, 14768028), (18, 12306690), (20, 11076021), (22, 10069110), (27, 8204460), (30, 7384014), (31, 7145820), (33, 6712740), (36, 6153345), (44, 5034555), (45, 4922676), (54, 4102230), (55, 4027644), (60, 3692007), (62, 3572910), (66, 3356370), (81, 2734820), (90, 2461338), (93, 2381940), (99, 2237580), (108, 2051115), (110, 2013822), (124, 1786455), (132, 1678185), (135, 1640892), (155, 1429164), (162, 1367410), (165, 1342548), (180, 1230669), (186, 1190970), (198, 1118790), (220, 1006911), (270, 820446), (279, 793980), (297, 745860), (310, 714582), (324, 683705), (330, 671274), (341, 649620), (372, 595485), (396, 559395), (401, 552420), (405, 546964), (465, 476388), (495, 447516), (540, 410223), (558, 396990), (594, 372930), (620, 357291), (660, 335637), (682, 324810), (802, 276210), (810, 273482), (837, 264660), (891, 248620), (930, 238194), (990, 223758), (1023, 216540), (1116, 198495), (1188, 186465), (1203, 184140), (1364, 162405), (1395, 158796), (1485, 149172), (1604, 138105), (1620, 136741), (1674, 132330), (1705, 129924), (1782, 124310), (1860, 119097), (1980, 111879), (2005, 110484), (2046, 108270), (2406, 92070), (2511, 88220), (2790, 79398), (2970, 74586), (3069, 72180), (3348, 66165), (3410, 64962), (3564, 62155), (3609, 61380), (4010, 55242), (4092, 54135), (4185, 52932), (4411, 50220), (4455, 49724), (4812, 46035), (5022, 44110), (5115, 43308), (5580, 39699), (5940, 37293), (6015, 36828), (6138, 36090), (6820, 32481), (7218, 30690), (8020, 27621), (8370, 26466), (8822, 25110), (8910, 24862), (9207, 24060), (10044, 22055), (10230, 21654), (10827, 20460), (12030, 18414), (12276, 18045), (12431, 17820), (12555, 17644), (13233, 16740), (14436, 15345)]