20135146880

素因数分解:

$2^7\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{28837}}^1$

素因数の和:29947

約数の個数: 64

約数和(自身を含む): 48181376880

約数和(自身を除く): 28046230000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1091, 2182, 4364, 5455, 8728, 10910, 17456, 21820, 28837, 34912, 43640, 57674, 69824, 87280, 115348, 139648, 144185, 174560, 230696, 288370, 349120, 461392, 576740, 698240, 922784, 1153480, 1845568, 2306960, 3691136, 4613920, 9227840, 18455680, 31461167, 62922334, 125844668, 157305835, 251689336, 314611670, 503378672, 629223340, 1006757344, 1258446680, 2013514688, 2516893360, 4027029376, 5033786720, 10067573440, 20135146880]

約数ペア:

[(1, 20135146880), (2, 10067573440), (4, 5033786720), (5, 4027029376), (8, 2516893360), (10, 2013514688), (16, 1258446680), (20, 1006757344), (32, 629223340), (40, 503378672), (64, 314611670), (80, 251689336), (128, 157305835), (160, 125844668), (320, 62922334), (640, 31461167), (1091, 18455680), (2182, 9227840), (4364, 4613920), (5455, 3691136), (8728, 2306960), (10910, 1845568), (17456, 1153480), (21820, 922784), (28837, 698240), (34912, 576740), (43640, 461392), (57674, 349120), (69824, 288370), (87280, 230696), (115348, 174560), (139648, 144185)]