20647376

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2953}}^1$

素因数の和:3003

約数の個数: 40

約数和(自身を含む): 43955520

約数和(自身を除く): 23308144

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 152, 184, 304, 368, 437, 874, 1748, 2953, 3496, 5906, 6992, 11812, 23624, 47248, 56107, 67919, 112214, 135838, 224428, 271676, 448856, 543352, 897712, 1086704, 1290461, 2580922, 5161844, 10323688, 20647376]

約数ペア:

[(1, 20647376), (2, 10323688), (4, 5161844), (8, 2580922), (16, 1290461), (19, 1086704), (23, 897712), (38, 543352), (46, 448856), (76, 271676), (92, 224428), (152, 135838), (184, 112214), (304, 67919), (368, 56107), (437, 47248), (874, 23624), (1748, 11812), (2953, 6992), (3496, 5906)]