28237880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2213}}^1$

素因数の和:2264

約数の個数: 64

約数和(自身を含む): 71733600

約数和(自身を除く): 43495720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 1160, 1276, 1595, 2213, 2552, 3190, 4426, 6380, 8852, 11065, 12760, 17704, 22130, 24343, 44260, 48686, 64177, 88520, 97372, 121715, 128354, 194744, 243430, 256708, 320885, 486860, 513416, 641770, 705947, 973720, 1283540, 1411894, 2567080, 2823788, 3529735, 5647576, 7059470, 14118940, 28237880]

約数ペア:

[(1, 28237880), (2, 14118940), (4, 7059470), (5, 5647576), (8, 3529735), (10, 2823788), (11, 2567080), (20, 1411894), (22, 1283540), (29, 973720), (40, 705947), (44, 641770), (55, 513416), (58, 486860), (88, 320885), (110, 256708), (116, 243430), (145, 194744), (220, 128354), (232, 121715), (290, 97372), (319, 88520), (440, 64177), (580, 48686), (638, 44260), (1160, 24343), (1276, 22130), (1595, 17704), (2213, 12760), (2552, 11065), (3190, 8852), (4426, 6380)]