18712617980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1789}}^1\times {\mathrm{74713}}^1$

素因数の和:76518

約数の個数: 48

約数和(自身を含む): 44935988160

約数和(自身を除く): 26223370180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1789, 3578, 7156, 8945, 12523, 17890, 25046, 35780, 50092, 62615, 74713, 125230, 149426, 250460, 298852, 373565, 522991, 747130, 1045982, 1494260, 2091964, 2614955, 5229910, 10459820, 133661557, 267323114, 534646228, 668307785, 935630899, 1336615570, 1871261798, 2673231140, 3742523596, 4678154495, 9356308990, 18712617980]

約数ペア:

[(1, 18712617980), (2, 9356308990), (4, 4678154495), (5, 3742523596), (7, 2673231140), (10, 1871261798), (14, 1336615570), (20, 935630899), (28, 668307785), (35, 534646228), (70, 267323114), (140, 133661557), (1789, 10459820), (3578, 5229910), (7156, 2614955), (8945, 2091964), (12523, 1494260), (17890, 1045982), (25046, 747130), (35780, 522991), (50092, 373565), (62615, 298852), (74713, 250460), (125230, 149426)]