28286980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{307}}^1$

素因数の和:604

約数の個数: 48

約数和(自身を含む): 63334656

約数和(自身を除く): 35047676

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 271, 307, 340, 542, 614, 1084, 1228, 1355, 1535, 2710, 3070, 4607, 5219, 5420, 6140, 9214, 10438, 18428, 20876, 23035, 26095, 46070, 52190, 83197, 92140, 104380, 166394, 332788, 415985, 831970, 1414349, 1663940, 2828698, 5657396, 7071745, 14143490, 28286980]

約数ペア:

[(1, 28286980), (2, 14143490), (4, 7071745), (5, 5657396), (10, 2828698), (17, 1663940), (20, 1414349), (34, 831970), (68, 415985), (85, 332788), (170, 166394), (271, 104380), (307, 92140), (340, 83197), (542, 52190), (614, 46070), (1084, 26095), (1228, 23035), (1355, 20876), (1535, 18428), (2710, 10438), (3070, 9214), (4607, 6140), (5219, 5420)]