18210550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{661}}^1$

素因数の和:721

約数の個数: 48

約数和(自身を含む): 36939600

約数和(自身を除く): 18729050

約数列:

[1, 2, 5, 10, 19, 25, 29, 38, 50, 58, 95, 145, 190, 290, 475, 551, 661, 725, 950, 1102, 1322, 1450, 2755, 3305, 5510, 6610, 12559, 13775, 16525, 19169, 25118, 27550, 33050, 38338, 62795, 95845, 125590, 191690, 313975, 364211, 479225, 627950, 728422, 958450, 1821055, 3642110, 9105275, 18210550]

約数ペア:

[(1, 18210550), (2, 9105275), (5, 3642110), (10, 1821055), (19, 958450), (25, 728422), (29, 627950), (38, 479225), (50, 364211), (58, 313975), (95, 191690), (145, 125590), (190, 95845), (290, 62795), (475, 38338), (551, 33050), (661, 27550), (725, 25118), (950, 19169), (1102, 16525), (1322, 13775), (1450, 12559), (2755, 6610), (3305, 5510)]