28881840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9257}}^1$

素因数の和:9286

約数の個数: 80

約数和(自身を含む): 96431328

約数和(自身を除く): 67549488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 9257, 18514, 27771, 37028, 46285, 55542, 74056, 92570, 111084, 120341, 138855, 148112, 185140, 222168, 240682, 277710, 361023, 370280, 444336, 481364, 555420, 601705, 722046, 740560, 962728, 1110840, 1203410, 1444092, 1805115, 1925456, 2221680, 2406820, 2888184, 3610230, 4813640, 5776368, 7220460, 9627280, 14440920, 28881840]

約数ペア:

[(1, 28881840), (2, 14440920), (3, 9627280), (4, 7220460), (5, 5776368), (6, 4813640), (8, 3610230), (10, 2888184), (12, 2406820), (13, 2221680), (15, 1925456), (16, 1805115), (20, 1444092), (24, 1203410), (26, 1110840), (30, 962728), (39, 740560), (40, 722046), (48, 601705), (52, 555420), (60, 481364), (65, 444336), (78, 370280), (80, 361023), (104, 277710), (120, 240682), (130, 222168), (156, 185140), (195, 148112), (208, 138855), (240, 120341), (260, 111084), (312, 92570), (390, 74056), (520, 55542), (624, 46285), (780, 37028), (1040, 27771), (1560, 18514), (3120, 9257)]