21977360

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9473}}^1$

素因数の和:9515

約数の個数: 40

約数和(自身を含む): 52864920

約数和(自身を除く): 30887560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9473, 18946, 37892, 47365, 75784, 94730, 151568, 189460, 274717, 378920, 549434, 757840, 1098868, 1373585, 2197736, 2747170, 4395472, 5494340, 10988680, 21977360]

約数ペア:

[(1, 21977360), (2, 10988680), (4, 5494340), (5, 4395472), (8, 2747170), (10, 2197736), (16, 1373585), (20, 1098868), (29, 757840), (40, 549434), (58, 378920), (80, 274717), (116, 189460), (145, 151568), (232, 94730), (290, 75784), (464, 47365), (580, 37892), (1160, 18946), (2320, 9473)]