81248520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21841}}^1$

素因数の和:21886

約数の個数: 64

約数和(自身を含む): 251619840

約数和(自身を除く): 170371320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 21841, 43682, 65523, 87364, 109205, 131046, 174728, 218410, 262092, 327615, 436820, 524184, 655230, 677071, 873640, 1310460, 1354142, 2031213, 2620920, 2708284, 3385355, 4062426, 5416568, 6770710, 8124852, 10156065, 13541420, 16249704, 20312130, 27082840, 40624260, 81248520]

約数ペア:

[(1, 81248520), (2, 40624260), (3, 27082840), (4, 20312130), (5, 16249704), (6, 13541420), (8, 10156065), (10, 8124852), (12, 6770710), (15, 5416568), (20, 4062426), (24, 3385355), (30, 2708284), (31, 2620920), (40, 2031213), (60, 1354142), (62, 1310460), (93, 873640), (120, 677071), (124, 655230), (155, 524184), (186, 436820), (248, 327615), (310, 262092), (372, 218410), (465, 174728), (620, 131046), (744, 109205), (930, 87364), (1240, 65523), (1860, 43682), (3720, 21841)]