131757040

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{16979}}^1$

素因数の和:17089

約数の個数: 40

約数和(自身を含む): 309511440

約数和(自身を除く): 177754400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 16979, 33958, 67916, 84895, 135832, 169790, 271664, 339580, 679160, 1358320, 1646963, 3293926, 6587852, 8234815, 13175704, 16469630, 26351408, 32939260, 65878520, 131757040]

約数ペア:

[(1, 131757040), (2, 65878520), (4, 32939260), (5, 26351408), (8, 16469630), (10, 13175704), (16, 8234815), (20, 6587852), (40, 3293926), (80, 1646963), (97, 1358320), (194, 679160), (388, 339580), (485, 271664), (776, 169790), (970, 135832), (1552, 84895), (1940, 67916), (3880, 33958), (7760, 16979)]