20328328

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7867}}^1$

素因数の和:7909

約数の個数: 32

約数和(自身を含む): 42487200

約数和(自身を除く): 22158872

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 7867, 15734, 31468, 62936, 133739, 149473, 267478, 298946, 534956, 597892, 1069912, 1195784, 2541041, 5082082, 10164164, 20328328]

約数ペア:

[(1, 20328328), (2, 10164164), (4, 5082082), (8, 2541041), (17, 1195784), (19, 1069912), (34, 597892), (38, 534956), (68, 298946), (76, 267478), (136, 149473), (152, 133739), (323, 62936), (646, 31468), (1292, 15734), (2584, 7867)]