393435880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{3271}}^1$

素因数の和:3410

約数の個数: 64

約数和(自身を含む): 923489280

約数和(自身を除く): 530053400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 97, 124, 155, 194, 248, 310, 388, 485, 620, 776, 970, 1240, 1940, 3007, 3271, 3880, 6014, 6542, 12028, 13084, 15035, 16355, 24056, 26168, 30070, 32710, 60140, 65420, 101401, 120280, 130840, 202802, 317287, 405604, 507005, 634574, 811208, 1014010, 1269148, 1586435, 2028020, 2538296, 3172870, 4056040, 6345740, 9835897, 12691480, 19671794, 39343588, 49179485, 78687176, 98358970, 196717940, 393435880]

約数ペア:

[(1, 393435880), (2, 196717940), (4, 98358970), (5, 78687176), (8, 49179485), (10, 39343588), (20, 19671794), (31, 12691480), (40, 9835897), (62, 6345740), (97, 4056040), (124, 3172870), (155, 2538296), (194, 2028020), (248, 1586435), (310, 1269148), (388, 1014010), (485, 811208), (620, 634574), (776, 507005), (970, 405604), (1240, 317287), (1940, 202802), (3007, 130840), (3271, 120280), (3880, 101401), (6014, 65420), (6542, 60140), (12028, 32710), (13084, 30070), (15035, 26168), (16355, 24056)]