51131960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1471}}^1$

素因数の和:1572

約数の個数: 64

約数和(自身を含む): 127180800

約数和(自身を除く): 76048840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 79, 88, 110, 158, 220, 316, 395, 440, 632, 790, 869, 1471, 1580, 1738, 2942, 3160, 3476, 4345, 5884, 6952, 7355, 8690, 11768, 14710, 16181, 17380, 29420, 32362, 34760, 58840, 64724, 80905, 116209, 129448, 161810, 232418, 323620, 464836, 581045, 647240, 929672, 1162090, 1278299, 2324180, 2556598, 4648360, 5113196, 6391495, 10226392, 12782990, 25565980, 51131960]

約数ペア:

[(1, 51131960), (2, 25565980), (4, 12782990), (5, 10226392), (8, 6391495), (10, 5113196), (11, 4648360), (20, 2556598), (22, 2324180), (40, 1278299), (44, 1162090), (55, 929672), (79, 647240), (88, 581045), (110, 464836), (158, 323620), (220, 232418), (316, 161810), (395, 129448), (440, 116209), (632, 80905), (790, 64724), (869, 58840), (1471, 34760), (1580, 32362), (1738, 29420), (2942, 17380), (3160, 16181), (3476, 14710), (4345, 11768), (5884, 8690), (6952, 7355)]