21926840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{283}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 53676000

約数和(自身を除く): 31749160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 149, 260, 283, 298, 520, 566, 596, 745, 1132, 1192, 1415, 1490, 1937, 2264, 2830, 2980, 3679, 3874, 5660, 5960, 7358, 7748, 9685, 11320, 14716, 15496, 18395, 19370, 29432, 36790, 38740, 42167, 73580, 77480, 84334, 147160, 168668, 210835, 337336, 421670, 548171, 843340, 1096342, 1686680, 2192684, 2740855, 4385368, 5481710, 10963420, 21926840]

約数ペア:

[(1, 21926840), (2, 10963420), (4, 5481710), (5, 4385368), (8, 2740855), (10, 2192684), (13, 1686680), (20, 1096342), (26, 843340), (40, 548171), (52, 421670), (65, 337336), (104, 210835), (130, 168668), (149, 147160), (260, 84334), (283, 77480), (298, 73580), (520, 42167), (566, 38740), (596, 36790), (745, 29432), (1132, 19370), (1192, 18395), (1415, 15496), (1490, 14716), (1937, 11320), (2264, 9685), (2830, 7748), (2980, 7358), (3679, 5960), (3874, 5660)]