20046520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2029}}^1$

素因数の和:2072

約数の個数: 64

約数和(自身を含む): 51156000

約数和(自身を除く): 31109480

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2029, 2470, 4058, 4940, 8116, 9880, 10145, 16232, 20290, 26377, 38551, 40580, 52754, 77102, 81160, 105508, 131885, 154204, 192755, 211016, 263770, 308408, 385510, 501163, 527540, 771020, 1002326, 1055080, 1542040, 2004652, 2505815, 4009304, 5011630, 10023260, 20046520]

約数ペア:

[(1, 20046520), (2, 10023260), (4, 5011630), (5, 4009304), (8, 2505815), (10, 2004652), (13, 1542040), (19, 1055080), (20, 1002326), (26, 771020), (38, 527540), (40, 501163), (52, 385510), (65, 308408), (76, 263770), (95, 211016), (104, 192755), (130, 154204), (152, 131885), (190, 105508), (247, 81160), (260, 77102), (380, 52754), (494, 40580), (520, 38551), (760, 26377), (988, 20290), (1235, 16232), (1976, 10145), (2029, 9880), (2470, 8116), (4058, 4940)]