20181993400

素因数分解:

$2^3\times 5^2\times {\mathrm{4327}}^1\times {\mathrm{23321}}^1$

素因数の和:27664

約数の個数: 48

約数和(自身を含む): 46935991440

約数和(自身を除く): 26753998040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 4327, 8654, 17308, 21635, 23321, 34616, 43270, 46642, 86540, 93284, 108175, 116605, 173080, 186568, 216350, 233210, 432700, 466420, 583025, 865400, 932840, 1166050, 2332100, 4664200, 100909967, 201819934, 403639868, 504549835, 807279736, 1009099670, 2018199340, 2522749175, 4036398680, 5045498350, 10090996700, 20181993400]

約数ペア:

[(1, 20181993400), (2, 10090996700), (4, 5045498350), (5, 4036398680), (8, 2522749175), (10, 2018199340), (20, 1009099670), (25, 807279736), (40, 504549835), (50, 403639868), (100, 201819934), (200, 100909967), (4327, 4664200), (8654, 2332100), (17308, 1166050), (21635, 932840), (23321, 865400), (34616, 583025), (43270, 466420), (46642, 432700), (86540, 233210), (93284, 216350), (108175, 186568), (116605, 173080)]