7977840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2557}}^1$

素因数の和:2586

約数の個数: 80

約数和(自身を含む): 26644128

約数和(自身を除く): 18666288

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, 2557, 3120, 5114, 7671, 10228, 12785, 15342, 20456, 25570, 30684, 33241, 38355, 40912, 51140, 61368, 66482, 76710, 99723, 102280, 122736, 132964, 153420, 166205, 199446, 204560, 265928, 306840, 332410, 398892, 498615, 531856, 613680, 664820, 797784, 997230, 1329640, 1595568, 1994460, 2659280, 3988920, 7977840]

約数ペア:

[(1, 7977840), (2, 3988920), (3, 2659280), (4, 1994460), (5, 1595568), (6, 1329640), (8, 997230), (10, 797784), (12, 664820), (13, 613680), (15, 531856), (16, 498615), (20, 398892), (24, 332410), (26, 306840), (30, 265928), (39, 204560), (40, 199446), (48, 166205), (52, 153420), (60, 132964), (65, 122736), (78, 102280), (80, 99723), (104, 76710), (120, 66482), (130, 61368), (156, 51140), (195, 40912), (208, 38355), (240, 33241), (260, 30684), (312, 25570), (390, 20456), (520, 15342), (624, 12785), (780, 10228), (1040, 7671), (1560, 5114), (2557, 3120)]