20408464

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:355

約数の個数: 40

約数和(自身を含む): 40713912

約数和(自身を除く): 20305448

約数列:

[1, 2, 4, 8, 16, 73, 101, 146, 173, 202, 292, 346, 404, 584, 692, 808, 1168, 1384, 1616, 2768, 7373, 12629, 14746, 17473, 25258, 29492, 34946, 50516, 58984, 69892, 101032, 117968, 139784, 202064, 279568, 1275529, 2551058, 5102116, 10204232, 20408464]

約数ペア:

[(1, 20408464), (2, 10204232), (4, 5102116), (8, 2551058), (16, 1275529), (73, 279568), (101, 202064), (146, 139784), (173, 117968), (202, 101032), (292, 69892), (346, 58984), (404, 50516), (584, 34946), (692, 29492), (808, 25258), (1168, 17473), (1384, 14746), (1616, 12629), (2768, 7373)]