131007420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1871}}^1$

素因数の和:2275

約数の個数: 72

約数和(自身を含む): 398623680

約数和(自身を除く): 267616260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 389, 778, 1167, 1556, 1871, 1945, 2334, 3501, 3742, 3890, 4668, 5613, 5835, 7002, 7484, 7780, 9355, 11226, 11670, 14004, 16839, 17505, 18710, 22452, 23340, 28065, 33678, 35010, 37420, 56130, 67356, 70020, 84195, 112260, 168390, 336780, 727819, 1455638, 2183457, 2911276, 3639095, 4366914, 6550371, 7278190, 8733828, 10917285, 13100742, 14556380, 21834570, 26201484, 32751855, 43669140, 65503710, 131007420]

約数ペア:

[(1, 131007420), (2, 65503710), (3, 43669140), (4, 32751855), (5, 26201484), (6, 21834570), (9, 14556380), (10, 13100742), (12, 10917285), (15, 8733828), (18, 7278190), (20, 6550371), (30, 4366914), (36, 3639095), (45, 2911276), (60, 2183457), (90, 1455638), (180, 727819), (389, 336780), (778, 168390), (1167, 112260), (1556, 84195), (1871, 70020), (1945, 67356), (2334, 56130), (3501, 37420), (3742, 35010), (3890, 33678), (4668, 28065), (5613, 23340), (5835, 22452), (7002, 18710), (7484, 17505), (7780, 16839), (9355, 14004), (11226, 11670)]