31485080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{439}}^1$

素因数の和:624

約数の個数: 64

約数和(自身を含む): 77932800

約数和(自身を除く): 46447720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 163, 220, 326, 439, 440, 652, 815, 878, 1304, 1630, 1756, 1793, 2195, 3260, 3512, 3586, 4390, 4829, 6520, 7172, 8780, 8965, 9658, 14344, 17560, 17930, 19316, 24145, 35860, 38632, 48290, 71557, 71720, 96580, 143114, 193160, 286228, 357785, 572456, 715570, 787127, 1431140, 1574254, 2862280, 3148508, 3935635, 6297016, 7871270, 15742540, 31485080]

約数ペア:

[(1, 31485080), (2, 15742540), (4, 7871270), (5, 6297016), (8, 3935635), (10, 3148508), (11, 2862280), (20, 1574254), (22, 1431140), (40, 787127), (44, 715570), (55, 572456), (88, 357785), (110, 286228), (163, 193160), (220, 143114), (326, 96580), (439, 71720), (440, 71557), (652, 48290), (815, 38632), (878, 35860), (1304, 24145), (1630, 19316), (1756, 17930), (1793, 17560), (2195, 14344), (3260, 9658), (3512, 8965), (3586, 8780), (4390, 7172), (4829, 6520)]