20178954435

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{15881}}^1$

素因数の和:16068

約数の個数: 64

約数和(自身を含む): 35128442880

約数和(自身を除く): 14949488445

約数列:

[1, 3, 5, 15, 23, 29, 69, 87, 115, 127, 145, 345, 381, 435, 635, 667, 1905, 2001, 2921, 3335, 3683, 8763, 10005, 11049, 14605, 15881, 18415, 43815, 47643, 55245, 79405, 84709, 238215, 254127, 365263, 423545, 460549, 1095789, 1270635, 1381647, 1826315, 2016887, 2302745, 5478945, 6050661, 6908235, 10084435, 10592627, 30253305, 31777881, 46388401, 52963135, 58489723, 139165203, 158889405, 175469169, 231942005, 292448615, 695826015, 877345845, 1345263629, 4035790887, 6726318145, 20178954435]

約数ペア:

[(1, 20178954435), (3, 6726318145), (5, 4035790887), (15, 1345263629), (23, 877345845), (29, 695826015), (69, 292448615), (87, 231942005), (115, 175469169), (127, 158889405), (145, 139165203), (345, 58489723), (381, 52963135), (435, 46388401), (635, 31777881), (667, 30253305), (1905, 10592627), (2001, 10084435), (2921, 6908235), (3335, 6050661), (3683, 5478945), (8763, 2302745), (10005, 2016887), (11049, 1826315), (14605, 1381647), (15881, 1270635), (18415, 1095789), (43815, 460549), (47643, 423545), (55245, 365263), (79405, 254127), (84709, 238215)]