20402808

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{443}}^1$

素因数の和:572

約数の個数: 64

約数和(自身を含む): 54345600

約数和(自身を除く): 33942792

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 101, 114, 152, 202, 228, 303, 404, 443, 456, 606, 808, 886, 1212, 1329, 1772, 1919, 2424, 2658, 3544, 3838, 5316, 5757, 7676, 8417, 10632, 11514, 15352, 16834, 23028, 25251, 33668, 44743, 46056, 50502, 67336, 89486, 101004, 134229, 178972, 202008, 268458, 357944, 536916, 850117, 1073832, 1700234, 2550351, 3400468, 5100702, 6800936, 10201404, 20402808]

約数ペア:

[(1, 20402808), (2, 10201404), (3, 6800936), (4, 5100702), (6, 3400468), (8, 2550351), (12, 1700234), (19, 1073832), (24, 850117), (38, 536916), (57, 357944), (76, 268458), (101, 202008), (114, 178972), (152, 134229), (202, 101004), (228, 89486), (303, 67336), (404, 50502), (443, 46056), (456, 44743), (606, 33668), (808, 25251), (886, 23028), (1212, 16834), (1329, 15352), (1772, 11514), (1919, 10632), (2424, 8417), (2658, 7676), (3544, 5757), (3838, 5316)]