131405980

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1\times {\mathrm{577}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 282572640

約数和(自身を除く): 151166660

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 193, 236, 295, 386, 577, 590, 772, 965, 1154, 1180, 1930, 2308, 2885, 3860, 5770, 11387, 11540, 22774, 34043, 45548, 56935, 68086, 111361, 113870, 136172, 170215, 222722, 227740, 340430, 445444, 556805, 680860, 1113610, 2227220, 6570299, 13140598, 26281196, 32851495, 65702990, 131405980]

約数ペア:

[(1, 131405980), (2, 65702990), (4, 32851495), (5, 26281196), (10, 13140598), (20, 6570299), (59, 2227220), (118, 1113610), (193, 680860), (236, 556805), (295, 445444), (386, 340430), (577, 227740), (590, 222722), (772, 170215), (965, 136172), (1154, 113870), (1180, 111361), (1930, 68086), (2308, 56935), (2885, 45548), (3860, 34043), (5770, 22774), (11387, 11540)]