20228312

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{353}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 44604000

約数和(自身を除く): 24375688

約数列:

[1, 2, 4, 8, 13, 19, 26, 29, 38, 52, 58, 76, 104, 116, 152, 232, 247, 353, 377, 494, 551, 706, 754, 988, 1102, 1412, 1508, 1976, 2204, 2824, 3016, 4408, 4589, 6707, 7163, 9178, 10237, 13414, 14326, 18356, 20474, 26828, 28652, 36712, 40948, 53656, 57304, 81896, 87191, 133081, 174382, 194503, 266162, 348764, 389006, 532324, 697528, 778012, 1064648, 1556024, 2528539, 5057078, 10114156, 20228312]

約数ペア:

[(1, 20228312), (2, 10114156), (4, 5057078), (8, 2528539), (13, 1556024), (19, 1064648), (26, 778012), (29, 697528), (38, 532324), (52, 389006), (58, 348764), (76, 266162), (104, 194503), (116, 174382), (152, 133081), (232, 87191), (247, 81896), (353, 57304), (377, 53656), (494, 40948), (551, 36712), (706, 28652), (754, 26828), (988, 20474), (1102, 18356), (1412, 14326), (1508, 13414), (1976, 10237), (2204, 9178), (2824, 7163), (3016, 6707), (4408, 4589)]