203297680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61981}}^1$

素因数の和:62035

約数の個数: 40

約数和(自身を含む): 484203384

約数和(自身を除く): 280905704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 61981, 123962, 247924, 309905, 495848, 619810, 991696, 1239620, 2479240, 2541221, 4958480, 5082442, 10164884, 12706105, 20329768, 25412210, 40659536, 50824420, 101648840, 203297680]

約数ペア:

[(1, 203297680), (2, 101648840), (4, 50824420), (5, 40659536), (8, 25412210), (10, 20329768), (16, 12706105), (20, 10164884), (40, 5082442), (41, 4958480), (80, 2541221), (82, 2479240), (164, 1239620), (205, 991696), (328, 619810), (410, 495848), (656, 309905), (820, 247924), (1640, 123962), (3280, 61981)]