771145700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1409}}^1$

素因数の和:1857

約数の個数: 72

約数和(自身を含む): 1807670760

約数和(自身を除く): 1036525060

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 421, 650, 842, 1300, 1409, 1684, 2105, 2818, 4210, 5473, 5636, 7045, 8420, 10525, 10946, 14090, 18317, 21050, 21892, 27365, 28180, 35225, 36634, 42100, 54730, 70450, 73268, 91585, 109460, 136825, 140900, 183170, 273650, 366340, 457925, 547300, 593189, 915850, 1186378, 1831700, 2372756, 2965945, 5931890, 7711457, 11863780, 14829725, 15422914, 29659450, 30845828, 38557285, 59318900, 77114570, 154229140, 192786425, 385572850, 771145700]

約数ペア:

[(1, 771145700), (2, 385572850), (4, 192786425), (5, 154229140), (10, 77114570), (13, 59318900), (20, 38557285), (25, 30845828), (26, 29659450), (50, 15422914), (52, 14829725), (65, 11863780), (100, 7711457), (130, 5931890), (260, 2965945), (325, 2372756), (421, 1831700), (650, 1186378), (842, 915850), (1300, 593189), (1409, 547300), (1684, 457925), (2105, 366340), (2818, 273650), (4210, 183170), (5473, 140900), (5636, 136825), (7045, 109460), (8420, 91585), (10525, 73268), (10946, 70450), (14090, 54730), (18317, 42100), (21050, 36634), (21892, 35225), (27365, 28180)]