30786280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2557}}^1$

素因数の和:2618

約数の個数: 64

約数和(自身を含む): 81037440

約数和(自身を除く): 50251160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 2557, 3010, 5114, 6020, 10228, 12040, 12785, 17899, 20456, 25570, 35798, 51140, 71596, 89495, 102280, 109951, 143192, 178990, 219902, 357980, 439804, 549755, 715960, 769657, 879608, 1099510, 1539314, 2199020, 3078628, 3848285, 4398040, 6157256, 7696570, 15393140, 30786280]

約数ペア:

[(1, 30786280), (2, 15393140), (4, 7696570), (5, 6157256), (7, 4398040), (8, 3848285), (10, 3078628), (14, 2199020), (20, 1539314), (28, 1099510), (35, 879608), (40, 769657), (43, 715960), (56, 549755), (70, 439804), (86, 357980), (140, 219902), (172, 178990), (215, 143192), (280, 109951), (301, 102280), (344, 89495), (430, 71596), (602, 51140), (860, 35798), (1204, 25570), (1505, 20456), (1720, 17899), (2408, 12785), (2557, 12040), (3010, 10228), (5114, 6020)]