28356660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{599}}^1$

素因数の和:877

約数の個数: 72

約数和(自身を含む): 86486400

約数和(自身を除く): 58129740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 263, 526, 599, 789, 1052, 1198, 1315, 1578, 1797, 2367, 2396, 2630, 2995, 3156, 3594, 3945, 4734, 5260, 5391, 5990, 7188, 7890, 8985, 9468, 10782, 11835, 11980, 15780, 17970, 21564, 23670, 26955, 35940, 47340, 53910, 107820, 157537, 315074, 472611, 630148, 787685, 945222, 1417833, 1575370, 1890444, 2363055, 2835666, 3150740, 4726110, 5671332, 7089165, 9452220, 14178330, 28356660]

約数ペア:

[(1, 28356660), (2, 14178330), (3, 9452220), (4, 7089165), (5, 5671332), (6, 4726110), (9, 3150740), (10, 2835666), (12, 2363055), (15, 1890444), (18, 1575370), (20, 1417833), (30, 945222), (36, 787685), (45, 630148), (60, 472611), (90, 315074), (180, 157537), (263, 107820), (526, 53910), (599, 47340), (789, 35940), (1052, 26955), (1198, 23670), (1315, 21564), (1578, 17970), (1797, 15780), (2367, 11980), (2396, 11835), (2630, 10782), (2995, 9468), (3156, 8985), (3594, 7890), (3945, 7188), (4734, 5990), (5260, 5391)]