18571280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2551}}^1$

素因数の和:2584

約数の個数: 80

約数和(自身を含む): 53163264

約数和(自身を除く): 34591984

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 2551, 3640, 5102, 7280, 10204, 12755, 17857, 20408, 25510, 33163, 35714, 40816, 51020, 66326, 71428, 89285, 102040, 132652, 142856, 165815, 178570, 204080, 232141, 265304, 285712, 331630, 357140, 464282, 530608, 663260, 714280, 928564, 1160705, 1326520, 1428560, 1857128, 2321410, 2653040, 3714256, 4642820, 9285640, 18571280]

約数ペア:

[(1, 18571280), (2, 9285640), (4, 4642820), (5, 3714256), (7, 2653040), (8, 2321410), (10, 1857128), (13, 1428560), (14, 1326520), (16, 1160705), (20, 928564), (26, 714280), (28, 663260), (35, 530608), (40, 464282), (52, 357140), (56, 331630), (65, 285712), (70, 265304), (80, 232141), (91, 204080), (104, 178570), (112, 165815), (130, 142856), (140, 132652), (182, 102040), (208, 89285), (260, 71428), (280, 66326), (364, 51020), (455, 40816), (520, 35714), (560, 33163), (728, 25510), (910, 20408), (1040, 17857), (1456, 12755), (1820, 10204), (2551, 7280), (3640, 5102)]