91510690

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1\times {\mathrm{449}}^1$

素因数の和:774

約数の個数: 32

約数和(自身を含む): 167670000

約数和(自身を除く): 76159310

約数列:

[1, 2, 5, 10, 89, 178, 229, 445, 449, 458, 890, 898, 1145, 2245, 2290, 4490, 20381, 39961, 40762, 79922, 101905, 102821, 199805, 203810, 205642, 399610, 514105, 1028210, 9151069, 18302138, 45755345, 91510690]

約数ペア:

[(1, 91510690), (2, 45755345), (5, 18302138), (10, 9151069), (89, 1028210), (178, 514105), (229, 399610), (445, 205642), (449, 203810), (458, 199805), (890, 102821), (898, 101905), (1145, 79922), (2245, 40762), (2290, 39961), (4490, 20381)]