155573720

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1$

素因数の和:504

約数の個数: 64

約数和(自身を含む): 357073920

約数和(自身を除く): 201500200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 163, 214, 223, 326, 428, 446, 535, 652, 815, 856, 892, 1070, 1115, 1304, 1630, 1784, 2140, 2230, 3260, 4280, 4460, 6520, 8920, 17441, 23861, 34882, 36349, 47722, 69764, 72698, 87205, 95444, 119305, 139528, 145396, 174410, 181745, 190888, 238610, 290792, 348820, 363490, 477220, 697640, 726980, 954440, 1453960, 3889343, 7778686, 15557372, 19446715, 31114744, 38893430, 77786860, 155573720]

約数ペア:

[(1, 155573720), (2, 77786860), (4, 38893430), (5, 31114744), (8, 19446715), (10, 15557372), (20, 7778686), (40, 3889343), (107, 1453960), (163, 954440), (214, 726980), (223, 697640), (326, 477220), (428, 363490), (446, 348820), (535, 290792), (652, 238610), (815, 190888), (856, 181745), (892, 174410), (1070, 145396), (1115, 139528), (1304, 119305), (1630, 95444), (1784, 87205), (2140, 72698), (2230, 69764), (3260, 47722), (4280, 36349), (4460, 34882), (6520, 23861), (8920, 17441)]