20862310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:325

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 24756890

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 43, 58, 70, 86, 145, 203, 215, 239, 290, 301, 406, 430, 478, 602, 1015, 1195, 1247, 1505, 1673, 2030, 2390, 2494, 3010, 3346, 6235, 6931, 8365, 8729, 10277, 12470, 13862, 16730, 17458, 20554, 34655, 43645, 48517, 51385, 69310, 71939, 87290, 97034, 102770, 143878, 242585, 298033, 359695, 485170, 596066, 719390, 1490165, 2086231, 2980330, 4172462, 10431155, 20862310]

約数ペア:

[(1, 20862310), (2, 10431155), (5, 4172462), (7, 2980330), (10, 2086231), (14, 1490165), (29, 719390), (35, 596066), (43, 485170), (58, 359695), (70, 298033), (86, 242585), (145, 143878), (203, 102770), (215, 97034), (239, 87290), (290, 71939), (301, 69310), (406, 51385), (430, 48517), (478, 43645), (602, 34655), (1015, 20554), (1195, 17458), (1247, 16730), (1505, 13862), (1673, 12470), (2030, 10277), (2390, 8729), (2494, 8365), (3010, 6931), (3346, 6235)]