78318020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{1123}}^1$

素因数の和:1460

約数の個数: 48

約数和(自身を含む): 180145728

約数和(自身を除く): 101827708

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 317, 634, 1123, 1268, 1585, 2246, 3170, 3487, 4492, 5615, 6340, 6974, 11230, 12353, 13948, 17435, 22460, 24706, 34870, 49412, 61765, 69740, 123530, 247060, 355991, 711982, 1423964, 1779955, 3559910, 3915901, 7119820, 7831802, 15663604, 19579505, 39159010, 78318020]

約数ペア:

[(1, 78318020), (2, 39159010), (4, 19579505), (5, 15663604), (10, 7831802), (11, 7119820), (20, 3915901), (22, 3559910), (44, 1779955), (55, 1423964), (110, 711982), (220, 355991), (317, 247060), (634, 123530), (1123, 69740), (1268, 61765), (1585, 49412), (2246, 34870), (3170, 24706), (3487, 22460), (4492, 17435), (5615, 13948), (6340, 12353), (6974, 11230)]