71380360

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{18397}}^1$

素因数の和:18505

約数の個数: 32

約数和(自身を含む): 162270360

約数和(自身を除く): 90890000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 18397, 36794, 73588, 91985, 147176, 183970, 367940, 735880, 1784509, 3569018, 7138036, 8922545, 14276072, 17845090, 35690180, 71380360]

約数ペア:

[(1, 71380360), (2, 35690180), (4, 17845090), (5, 14276072), (8, 8922545), (10, 7138036), (20, 3569018), (40, 1784509), (97, 735880), (194, 367940), (388, 183970), (485, 147176), (776, 91985), (970, 73588), (1940, 36794), (3880, 18397)]