20615540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1129}}^1$

素因数の和:1232

約数の個数: 48

約数和(自身を含む): 47839680

約数和(自身を除く): 27224140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 83, 110, 166, 220, 332, 415, 830, 913, 1129, 1660, 1826, 2258, 3652, 4516, 4565, 5645, 9130, 11290, 12419, 18260, 22580, 24838, 49676, 62095, 93707, 124190, 187414, 248380, 374828, 468535, 937070, 1030777, 1874140, 2061554, 4123108, 5153885, 10307770, 20615540]

約数ペア:

[(1, 20615540), (2, 10307770), (4, 5153885), (5, 4123108), (10, 2061554), (11, 1874140), (20, 1030777), (22, 937070), (44, 468535), (55, 374828), (83, 248380), (110, 187414), (166, 124190), (220, 93707), (332, 62095), (415, 49676), (830, 24838), (913, 22580), (1129, 18260), (1660, 12419), (1826, 11290), (2258, 9130), (3652, 5645), (4516, 4565)]