20181815888

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{59417}}^1$

素因数の和:59532

約数の個数: 80

約数和(自身を含む): 44560647936

約数和(自身を除く): 24378832048

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 71, 92, 104, 142, 184, 208, 284, 299, 368, 568, 598, 923, 1136, 1196, 1633, 1846, 2392, 3266, 3692, 4784, 6532, 7384, 13064, 14768, 21229, 26128, 42458, 59417, 84916, 118834, 169832, 237668, 339664, 475336, 772421, 950672, 1366591, 1544842, 2733182, 3089684, 4218607, 5466364, 6179368, 8437214, 10932728, 12358736, 16874428, 17765683, 21865456, 33748856, 35531366, 54841891, 67497712, 71062732, 97027961, 109683782, 142125464, 194055922, 219367564, 284250928, 388111844, 438735128, 776223688, 877470256, 1261363493, 1552447376, 2522726986, 5045453972, 10090907944, 20181815888]

約数ペア:

[(1, 20181815888), (2, 10090907944), (4, 5045453972), (8, 2522726986), (13, 1552447376), (16, 1261363493), (23, 877470256), (26, 776223688), (46, 438735128), (52, 388111844), (71, 284250928), (92, 219367564), (104, 194055922), (142, 142125464), (184, 109683782), (208, 97027961), (284, 71062732), (299, 67497712), (368, 54841891), (568, 35531366), (598, 33748856), (923, 21865456), (1136, 17765683), (1196, 16874428), (1633, 12358736), (1846, 10932728), (2392, 8437214), (3266, 6179368), (3692, 5466364), (4784, 4218607), (6532, 3089684), (7384, 2733182), (13064, 1544842), (14768, 1366591), (21229, 950672), (26128, 772421), (42458, 475336), (59417, 339664), (84916, 237668), (118834, 169832)]