90887020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{4357}}^1$

素因数の和:4522

約数の個数: 48

約数和(自身を含む): 219643200

約数和(自身を除く): 128756180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 1043, 1490, 2086, 2980, 4172, 4357, 5215, 8714, 10430, 17428, 20860, 21785, 30499, 43570, 60998, 87140, 121996, 152495, 304990, 609980, 649193, 1298386, 2596772, 3245965, 4544351, 6491930, 9088702, 12983860, 18177404, 22721755, 45443510, 90887020]

約数ペア:

[(1, 90887020), (2, 45443510), (4, 22721755), (5, 18177404), (7, 12983860), (10, 9088702), (14, 6491930), (20, 4544351), (28, 3245965), (35, 2596772), (70, 1298386), (140, 649193), (149, 609980), (298, 304990), (596, 152495), (745, 121996), (1043, 87140), (1490, 60998), (2086, 43570), (2980, 30499), (4172, 21785), (4357, 20860), (5215, 17428), (8714, 10430)]