20135600

素因数分解:

$2^4\times 5^2\times {\mathrm{71}}^1\times {\mathrm{709}}^1$

素因数の和:798

約数の個数: 60

約数和(自身を含む): 49126320

約数和(自身を除く): 28990720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 142, 200, 284, 355, 400, 568, 709, 710, 1136, 1418, 1420, 1775, 2836, 2840, 3545, 3550, 5672, 5680, 7090, 7100, 11344, 14180, 14200, 17725, 28360, 28400, 35450, 50339, 56720, 70900, 100678, 141800, 201356, 251695, 283600, 402712, 503390, 805424, 1006780, 1258475, 2013560, 2516950, 4027120, 5033900, 10067800, 20135600]

約数ペア:

[(1, 20135600), (2, 10067800), (4, 5033900), (5, 4027120), (8, 2516950), (10, 2013560), (16, 1258475), (20, 1006780), (25, 805424), (40, 503390), (50, 402712), (71, 283600), (80, 251695), (100, 201356), (142, 141800), (200, 100678), (284, 70900), (355, 56720), (400, 50339), (568, 35450), (709, 28400), (710, 28360), (1136, 17725), (1418, 14200), (1420, 14180), (1775, 11344), (2836, 7100), (2840, 7090), (3545, 5680), (3550, 5672)]