18015760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{607}}^1$

素因数の和:680

約数の個数: 80

約数和(自身を含む): 48854016

約数和(自身を除く): 30838256

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 70, 80, 106, 112, 140, 212, 265, 280, 371, 424, 530, 560, 607, 742, 848, 1060, 1214, 1484, 1855, 2120, 2428, 2968, 3035, 3710, 4240, 4249, 4856, 5936, 6070, 7420, 8498, 9712, 12140, 14840, 16996, 21245, 24280, 29680, 32171, 33992, 42490, 48560, 64342, 67984, 84980, 128684, 160855, 169960, 225197, 257368, 321710, 339920, 450394, 514736, 643420, 900788, 1125985, 1286840, 1801576, 2251970, 2573680, 3603152, 4503940, 9007880, 18015760]

約数ペア:

[(1, 18015760), (2, 9007880), (4, 4503940), (5, 3603152), (7, 2573680), (8, 2251970), (10, 1801576), (14, 1286840), (16, 1125985), (20, 900788), (28, 643420), (35, 514736), (40, 450394), (53, 339920), (56, 321710), (70, 257368), (80, 225197), (106, 169960), (112, 160855), (140, 128684), (212, 84980), (265, 67984), (280, 64342), (371, 48560), (424, 42490), (530, 33992), (560, 32171), (607, 29680), (742, 24280), (848, 21245), (1060, 16996), (1214, 14840), (1484, 12140), (1855, 9712), (2120, 8498), (2428, 7420), (2968, 6070), (3035, 5936), (3710, 4856), (4240, 4249)]