20434480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2111}}^1$

素因数の和:2146

約数の個数: 60

約数和(自身を含む): 52246656

約数和(自身を除く): 31812176

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2111, 2420, 4222, 4840, 8444, 9680, 10555, 16888, 21110, 23221, 33776, 42220, 46442, 84440, 92884, 116105, 168880, 185768, 232210, 255431, 371536, 464420, 510862, 928840, 1021724, 1277155, 1857680, 2043448, 2554310, 4086896, 5108620, 10217240, 20434480]

約数ペア:

[(1, 20434480), (2, 10217240), (4, 5108620), (5, 4086896), (8, 2554310), (10, 2043448), (11, 1857680), (16, 1277155), (20, 1021724), (22, 928840), (40, 510862), (44, 464420), (55, 371536), (80, 255431), (88, 232210), (110, 185768), (121, 168880), (176, 116105), (220, 92884), (242, 84440), (440, 46442), (484, 42220), (605, 33776), (880, 23221), (968, 21110), (1210, 16888), (1936, 10555), (2111, 9680), (2420, 8444), (4222, 4840)]