205800920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{2621}}^1$

素因数の和:2796

約数の個数: 64

約数和(自身を含む): 502165440

約数和(自身を除く): 296364520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 151, 260, 302, 520, 604, 755, 1208, 1510, 1963, 2621, 3020, 3926, 5242, 6040, 7852, 9815, 10484, 13105, 15704, 19630, 20968, 26210, 34073, 39260, 52420, 68146, 78520, 104840, 136292, 170365, 272584, 340730, 395771, 681460, 791542, 1362920, 1583084, 1978855, 3166168, 3957710, 5145023, 7915420, 10290046, 15830840, 20580092, 25725115, 41160184, 51450230, 102900460, 205800920]

約数ペア:

[(1, 205800920), (2, 102900460), (4, 51450230), (5, 41160184), (8, 25725115), (10, 20580092), (13, 15830840), (20, 10290046), (26, 7915420), (40, 5145023), (52, 3957710), (65, 3166168), (104, 1978855), (130, 1583084), (151, 1362920), (260, 791542), (302, 681460), (520, 395771), (604, 340730), (755, 272584), (1208, 170365), (1510, 136292), (1963, 104840), (2621, 78520), (3020, 68146), (3926, 52420), (5242, 39260), (6040, 34073), (7852, 26210), (9815, 20968), (10484, 19630), (13105, 15704)]