78658840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{457}}^1$

素因数の和:812

約数の個数: 64

約数和(自身を含む): 191590560

約数和(自身を除く): 112931720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 331, 457, 520, 662, 914, 1324, 1655, 1828, 2285, 2648, 3310, 3656, 4303, 4570, 5941, 6620, 8606, 9140, 11882, 13240, 17212, 18280, 21515, 23764, 29705, 34424, 43030, 47528, 59410, 86060, 118820, 151267, 172120, 237640, 302534, 605068, 756335, 1210136, 1512670, 1966471, 3025340, 3932942, 6050680, 7865884, 9832355, 15731768, 19664710, 39329420, 78658840]

約数ペア:

[(1, 78658840), (2, 39329420), (4, 19664710), (5, 15731768), (8, 9832355), (10, 7865884), (13, 6050680), (20, 3932942), (26, 3025340), (40, 1966471), (52, 1512670), (65, 1210136), (104, 756335), (130, 605068), (260, 302534), (331, 237640), (457, 172120), (520, 151267), (662, 118820), (914, 86060), (1324, 59410), (1655, 47528), (1828, 43030), (2285, 34424), (2648, 29705), (3310, 23764), (3656, 21515), (4303, 18280), (4570, 17212), (5941, 13240), (6620, 11882), (8606, 9140)]