15855620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{743}}^1$

素因数の和:860

約数の個数: 48

約数和(自身を含む): 36747648

約数和(自身を除く): 20892028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 485, 743, 970, 1067, 1486, 1940, 2134, 2972, 3715, 4268, 5335, 7430, 8173, 10670, 14860, 16346, 21340, 32692, 40865, 72071, 81730, 144142, 163460, 288284, 360355, 720710, 792781, 1441420, 1585562, 3171124, 3963905, 7927810, 15855620]

約数ペア:

[(1, 15855620), (2, 7927810), (4, 3963905), (5, 3171124), (10, 1585562), (11, 1441420), (20, 792781), (22, 720710), (44, 360355), (55, 288284), (97, 163460), (110, 144142), (194, 81730), (220, 72071), (388, 40865), (485, 32692), (743, 21340), (970, 16346), (1067, 14860), (1486, 10670), (1940, 8173), (2134, 7430), (2972, 5335), (3715, 4268)]