687788210

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{331}}^1\times {\mathrm{719}}^1$

素因数の和:1091

約数の個数: 48

約数和(自身を含む): 1320935040

約数和(自身を除く): 633146830

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 331, 578, 662, 719, 1438, 1445, 1655, 2890, 3310, 3595, 5627, 7190, 11254, 12223, 24446, 28135, 56270, 61115, 95659, 122230, 191318, 207791, 237989, 415582, 475978, 478295, 956590, 1038955, 1189945, 2077910, 2379890, 4045813, 8091626, 20229065, 40458130, 68778821, 137557642, 343894105, 687788210]

約数ペア:

[(1, 687788210), (2, 343894105), (5, 137557642), (10, 68778821), (17, 40458130), (34, 20229065), (85, 8091626), (170, 4045813), (289, 2379890), (331, 2077910), (578, 1189945), (662, 1038955), (719, 956590), (1438, 478295), (1445, 475978), (1655, 415582), (2890, 237989), (3310, 207791), (3595, 191318), (5627, 122230), (7190, 95659), (11254, 61115), (12223, 56270), (24446, 28135)]