105702920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{64453}}^1$

素因数の和:64505

約数の個数: 32

約数和(自身を含む): 243636120

約数和(自身を除く): 137933200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 64453, 128906, 257812, 322265, 515624, 644530, 1289060, 2578120, 2642573, 5285146, 10570292, 13212865, 21140584, 26425730, 52851460, 105702920]

約数ペア:

[(1, 105702920), (2, 52851460), (4, 26425730), (5, 21140584), (8, 13212865), (10, 10570292), (20, 5285146), (40, 2642573), (41, 2578120), (82, 1289060), (164, 644530), (205, 515624), (328, 322265), (410, 257812), (820, 128906), (1640, 64453)]