181191920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{24889}}^1$

素因数の和:24922

約数の個数: 80

約数和(自身を含む): 518508480

約数和(自身を除く): 337316560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 24889, 49778, 99556, 124445, 174223, 199112, 248890, 323557, 348446, 398224, 497780, 647114, 696892, 871115, 995560, 1294228, 1393784, 1617785, 1742230, 1991120, 2264899, 2588456, 2787568, 3235570, 3484460, 4529798, 5176912, 6471140, 6968920, 9059596, 11324495, 12942280, 13937840, 18119192, 22648990, 25884560, 36238384, 45297980, 90595960, 181191920]

約数ペア:

[(1, 181191920), (2, 90595960), (4, 45297980), (5, 36238384), (7, 25884560), (8, 22648990), (10, 18119192), (13, 13937840), (14, 12942280), (16, 11324495), (20, 9059596), (26, 6968920), (28, 6471140), (35, 5176912), (40, 4529798), (52, 3484460), (56, 3235570), (65, 2787568), (70, 2588456), (80, 2264899), (91, 1991120), (104, 1742230), (112, 1617785), (130, 1393784), (140, 1294228), (182, 995560), (208, 871115), (260, 696892), (280, 647114), (364, 497780), (455, 398224), (520, 348446), (560, 323557), (728, 248890), (910, 199112), (1040, 174223), (1456, 124445), (1820, 99556), (3640, 49778), (7280, 24889)]