90899260

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1\times {\mathrm{229}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 194745600

約数和(自身を除く): 103846340

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 223, 229, 356, 445, 446, 458, 890, 892, 916, 1115, 1145, 1780, 2230, 2290, 4460, 4580, 19847, 20381, 39694, 40762, 51067, 79388, 81524, 99235, 101905, 102134, 198470, 203810, 204268, 255335, 396940, 407620, 510670, 1021340, 4544963, 9089926, 18179852, 22724815, 45449630, 90899260]

約数ペア:

[(1, 90899260), (2, 45449630), (4, 22724815), (5, 18179852), (10, 9089926), (20, 4544963), (89, 1021340), (178, 510670), (223, 407620), (229, 396940), (356, 255335), (445, 204268), (446, 203810), (458, 198470), (890, 102134), (892, 101905), (916, 99235), (1115, 81524), (1145, 79388), (1780, 51067), (2230, 40762), (2290, 39694), (4460, 20381), (4580, 19847)]