1219626640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{214723}}^1$

素因数の和:214807

約数の個数: 40

約数和(自身を含む): 2875583808

約数和(自身を除く): 1655957168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 214723, 429446, 858892, 1073615, 1717784, 2147230, 3435568, 4294460, 8588920, 15245333, 17177840, 30490666, 60981332, 76226665, 121962664, 152453330, 243925328, 304906660, 609813320, 1219626640]

約数ペア:

[(1, 1219626640), (2, 609813320), (4, 304906660), (5, 243925328), (8, 152453330), (10, 121962664), (16, 76226665), (20, 60981332), (40, 30490666), (71, 17177840), (80, 15245333), (142, 8588920), (284, 4294460), (355, 3435568), (568, 2147230), (710, 1717784), (1136, 1073615), (1420, 858892), (2840, 429446), (5680, 214723)]