197900440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{120671}}^1$

素因数の和:120723

約数の個数: 32

約数和(自身を含む): 456140160

約数和(自身を除く): 258239720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 120671, 241342, 482684, 603355, 965368, 1206710, 2413420, 4826840, 4947511, 9895022, 19790044, 24737555, 39580088, 49475110, 98950220, 197900440]

約数ペア:

[(1, 197900440), (2, 98950220), (4, 49475110), (5, 39580088), (8, 24737555), (10, 19790044), (20, 9895022), (40, 4947511), (41, 4826840), (82, 2413420), (164, 1206710), (205, 965368), (328, 603355), (410, 482684), (820, 241342), (1640, 120671)]