2639299940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1\times {\mathrm{2999}}^1$

素因数の和:3644

約数の個数: 48

約数和(自身を含む): 5624640000

約数和(自身を除く): 2985340060

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 557, 790, 1114, 1580, 2228, 2785, 2999, 5570, 5998, 11140, 11996, 14995, 29990, 44003, 59980, 88006, 176012, 220015, 236921, 440030, 473842, 880060, 947684, 1184605, 1670443, 2369210, 3340886, 4738420, 6681772, 8352215, 16704430, 33408860, 131964997, 263929994, 527859988, 659824985, 1319649970, 2639299940]

約数ペア:

[(1, 2639299940), (2, 1319649970), (4, 659824985), (5, 527859988), (10, 263929994), (20, 131964997), (79, 33408860), (158, 16704430), (316, 8352215), (395, 6681772), (557, 4738420), (790, 3340886), (1114, 2369210), (1580, 1670443), (2228, 1184605), (2785, 947684), (2999, 880060), (5570, 473842), (5998, 440030), (11140, 236921), (11996, 220015), (14995, 176012), (29990, 88006), (44003, 59980)]