20086720

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1531}}^1$

素因数の和:1589

約数の個数: 56

約数和(自身を含む): 49030128

約数和(自身を除く): 28943408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 656, 820, 1312, 1531, 1640, 2624, 3062, 3280, 6124, 6560, 7655, 12248, 13120, 15310, 24496, 30620, 48992, 61240, 62771, 97984, 122480, 125542, 244960, 251084, 313855, 489920, 502168, 627710, 1004336, 1255420, 2008672, 2510840, 4017344, 5021680, 10043360, 20086720]

約数ペア:

[(1, 20086720), (2, 10043360), (4, 5021680), (5, 4017344), (8, 2510840), (10, 2008672), (16, 1255420), (20, 1004336), (32, 627710), (40, 502168), (41, 489920), (64, 313855), (80, 251084), (82, 244960), (160, 125542), (164, 122480), (205, 97984), (320, 62771), (328, 61240), (410, 48992), (656, 30620), (820, 24496), (1312, 15310), (1531, 13120), (1640, 12248), (2624, 7655), (3062, 6560), (3280, 6124)]