66865864

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{19}}^2\times {\mathrm{137}}^1$

素因数の和:207

約数の個数: 72

約数和(自身を含む): 144326610

約数和(自身を除く): 77460746

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 137, 152, 169, 247, 274, 338, 361, 494, 548, 676, 722, 988, 1096, 1352, 1444, 1781, 1976, 2603, 2888, 3211, 3562, 4693, 5206, 6422, 7124, 9386, 10412, 12844, 14248, 18772, 20824, 23153, 25688, 33839, 37544, 46306, 49457, 61009, 67678, 92612, 98914, 122018, 135356, 185224, 197828, 244036, 270712, 395656, 439907, 488072, 642941, 879814, 1285882, 1759628, 2571764, 3519256, 5143528, 8358233, 16716466, 33432932, 66865864]

約数ペア:

[(1, 66865864), (2, 33432932), (4, 16716466), (8, 8358233), (13, 5143528), (19, 3519256), (26, 2571764), (38, 1759628), (52, 1285882), (76, 879814), (104, 642941), (137, 488072), (152, 439907), (169, 395656), (247, 270712), (274, 244036), (338, 197828), (361, 185224), (494, 135356), (548, 122018), (676, 98914), (722, 92612), (988, 67678), (1096, 61009), (1352, 49457), (1444, 46306), (1781, 37544), (1976, 33839), (2603, 25688), (2888, 23153), (3211, 20824), (3562, 18772), (4693, 14248), (5206, 12844), (6422, 10412), (7124, 9386)]