25281590

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{491}}^1$

素因数の和:788

約数の個数: 32

約数和(自身を含む): 48176640

約数和(自身を除く): 22895050

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 271, 491, 542, 982, 1355, 2455, 2710, 4910, 5149, 9329, 10298, 18658, 25745, 46645, 51490, 93290, 133061, 266122, 665305, 1330610, 2528159, 5056318, 12640795, 25281590]

約数ペア:

[(1, 25281590), (2, 12640795), (5, 5056318), (10, 2528159), (19, 1330610), (38, 665305), (95, 266122), (190, 133061), (271, 93290), (491, 51490), (542, 46645), (982, 25745), (1355, 18658), (2455, 10298), (2710, 9329), (4910, 5149)]