20228713988

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{161659}}^1$

素因数の和:161820

約数の個数: 48

約数和(自身を含む): 41824675200

約数和(自身を除く): 21595961212

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 109, 164, 218, 287, 436, 574, 763, 1148, 1526, 3052, 4469, 8938, 17876, 31283, 62566, 125132, 161659, 323318, 646636, 1131613, 2263226, 4526452, 6628019, 13256038, 17620831, 26512076, 35241662, 46396133, 70483324, 92792266, 123345817, 185584532, 246691634, 493383268, 722454071, 1444908142, 2889816284, 5057178497, 10114356994, 20228713988]

約数ペア:

[(1, 20228713988), (2, 10114356994), (4, 5057178497), (7, 2889816284), (14, 1444908142), (28, 722454071), (41, 493383268), (82, 246691634), (109, 185584532), (164, 123345817), (218, 92792266), (287, 70483324), (436, 46396133), (574, 35241662), (763, 26512076), (1148, 17620831), (1526, 13256038), (3052, 6628019), (4469, 4526452), (8938, 2263226), (17876, 1131613), (31283, 646636), (62566, 323318), (125132, 161659)]