254420240

素因数分解:

$2^4\times 5^1\times {\mathrm{1607}}^1\times {\mathrm{1979}}^1$

素因数の和:3599

約数の個数: 40

約数和(自身を含む): 592194240

約数和(自身を除く): 337774000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1607, 1979, 3214, 3958, 6428, 7916, 8035, 9895, 12856, 15832, 16070, 19790, 25712, 31664, 32140, 39580, 64280, 79160, 128560, 158320, 3180253, 6360506, 12721012, 15901265, 25442024, 31802530, 50884048, 63605060, 127210120, 254420240]

約数ペア:

[(1, 254420240), (2, 127210120), (4, 63605060), (5, 50884048), (8, 31802530), (10, 25442024), (16, 15901265), (20, 12721012), (40, 6360506), (80, 3180253), (1607, 158320), (1979, 128560), (3214, 79160), (3958, 64280), (6428, 39580), (7916, 32140), (8035, 31664), (9895, 25712), (12856, 19790), (15832, 16070)]