678487948

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:755

約数の個数: 72

約数和(自身を含む): 1351848960

約数和(自身を除く): 673361012

約数列:

[1, 2, 4, 19, 23, 31, 38, 46, 62, 76, 92, 124, 361, 437, 589, 659, 713, 722, 874, 1178, 1318, 1426, 1444, 1748, 2356, 2636, 2852, 8303, 11191, 12521, 13547, 15157, 16606, 20429, 22382, 25042, 27094, 30314, 33212, 40858, 44764, 50084, 54188, 60628, 81716, 237899, 257393, 287983, 388151, 469867, 475798, 514786, 575966, 776302, 939734, 951596, 1029572, 1151932, 1552604, 1879468, 5471677, 7374869, 8927473, 10943354, 14749738, 17854946, 21886708, 29499476, 35709892, 169621987, 339243974, 678487948]

約数ペア:

[(1, 678487948), (2, 339243974), (4, 169621987), (19, 35709892), (23, 29499476), (31, 21886708), (38, 17854946), (46, 14749738), (62, 10943354), (76, 8927473), (92, 7374869), (124, 5471677), (361, 1879468), (437, 1552604), (589, 1151932), (659, 1029572), (713, 951596), (722, 939734), (874, 776302), (1178, 575966), (1318, 514786), (1426, 475798), (1444, 469867), (1748, 388151), (2356, 287983), (2636, 257393), (2852, 237899), (8303, 81716), (11191, 60628), (12521, 54188), (13547, 50084), (15157, 44764), (16606, 40858), (20429, 33212), (22382, 30314), (25042, 27094)]