689517868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1\times {\mathrm{509}}^1$

素因数の和:874

約数の個数: 48

約数和(自身を含む): 1319472000

約数和(自身を除く): 629954132

約数列:

[1, 2, 4, 13, 26, 52, 109, 218, 239, 436, 478, 509, 956, 1018, 1417, 2036, 2834, 3107, 5668, 6214, 6617, 12428, 13234, 26051, 26468, 52102, 55481, 104204, 110962, 121651, 221924, 243302, 338663, 486604, 677326, 721253, 1354652, 1442506, 1581463, 2885012, 3162926, 6325852, 13259959, 26519918, 53039836, 172379467, 344758934, 689517868]

約数ペア:

[(1, 689517868), (2, 344758934), (4, 172379467), (13, 53039836), (26, 26519918), (52, 13259959), (109, 6325852), (218, 3162926), (239, 2885012), (436, 1581463), (478, 1442506), (509, 1354652), (956, 721253), (1018, 677326), (1417, 486604), (2036, 338663), (2834, 243302), (3107, 221924), (5668, 121651), (6214, 110962), (6617, 104204), (12428, 55481), (13234, 52102), (26051, 26468)]