28260790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:301

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 29800010

約数列:

[1, 2, 5, 10, 19, 23, 29, 38, 46, 58, 95, 115, 145, 190, 223, 230, 290, 437, 446, 551, 667, 874, 1102, 1115, 1334, 2185, 2230, 2755, 3335, 4237, 4370, 5129, 5510, 6467, 6670, 8474, 10258, 12673, 12934, 21185, 25346, 25645, 32335, 42370, 51290, 63365, 64670, 97451, 122873, 126730, 148741, 194902, 245746, 297482, 487255, 614365, 743705, 974510, 1228730, 1487410, 2826079, 5652158, 14130395, 28260790]

約数ペア:

[(1, 28260790), (2, 14130395), (5, 5652158), (10, 2826079), (19, 1487410), (23, 1228730), (29, 974510), (38, 743705), (46, 614365), (58, 487255), (95, 297482), (115, 245746), (145, 194902), (190, 148741), (223, 126730), (230, 122873), (290, 97451), (437, 64670), (446, 63365), (551, 51290), (667, 42370), (874, 32335), (1102, 25645), (1115, 25346), (1334, 21185), (2185, 12934), (2230, 12673), (2755, 10258), (3335, 8474), (4237, 6670), (4370, 6467), (5129, 5510)]