55115920

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7741}}^1$

素因数の和:7843

約数の個数: 40

約数和(自身を含む): 129601080

約数和(自身を除く): 74485160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 7741, 15482, 30964, 38705, 61928, 77410, 123856, 154820, 309640, 619280, 688949, 1377898, 2755796, 3444745, 5511592, 6889490, 11023184, 13778980, 27557960, 55115920]

約数ペア:

[(1, 55115920), (2, 27557960), (4, 13778980), (5, 11023184), (8, 6889490), (10, 5511592), (16, 3444745), (20, 2755796), (40, 1377898), (80, 688949), (89, 619280), (178, 309640), (356, 154820), (445, 123856), (712, 77410), (890, 61928), (1424, 38705), (1780, 30964), (3560, 15482), (7120, 7741)]