71721848

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 154275840

約数和(自身を除く): 82553992

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 61, 62, 88, 122, 124, 244, 248, 341, 431, 488, 671, 682, 862, 1342, 1364, 1724, 1891, 2684, 2728, 3448, 3782, 4741, 5368, 7564, 9482, 13361, 15128, 18964, 20801, 26291, 26722, 37928, 41602, 52582, 53444, 83204, 105164, 106888, 146971, 166408, 210328, 289201, 293942, 578402, 587884, 815021, 1156804, 1175768, 1630042, 2313608, 3260084, 6520168, 8965231, 17930462, 35860924, 71721848]

約数ペア:

[(1, 71721848), (2, 35860924), (4, 17930462), (8, 8965231), (11, 6520168), (22, 3260084), (31, 2313608), (44, 1630042), (61, 1175768), (62, 1156804), (88, 815021), (122, 587884), (124, 578402), (244, 293942), (248, 289201), (341, 210328), (431, 166408), (488, 146971), (671, 106888), (682, 105164), (862, 83204), (1342, 53444), (1364, 52582), (1724, 41602), (1891, 37928), (2684, 26722), (2728, 26291), (3448, 20801), (3782, 18964), (4741, 15128), (5368, 13361), (7564, 9482)]