155118520

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{39979}}^1$

素因数の和:40087

約数の個数: 32

約数和(自身を含む): 352623600

約数和(自身を除く): 197505080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 39979, 79958, 159916, 199895, 319832, 399790, 799580, 1599160, 3877963, 7755926, 15511852, 19389815, 31023704, 38779630, 77559260, 155118520]

約数ペア:

[(1, 155118520), (2, 77559260), (4, 38779630), (5, 31023704), (8, 19389815), (10, 15511852), (20, 7755926), (40, 3877963), (97, 1599160), (194, 799580), (388, 399790), (485, 319832), (776, 199895), (970, 159916), (1940, 79958), (3880, 39979)]