258889160

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137707}}^1$

素因数の和:137765

約数の個数: 32

約数和(自身を含む): 594898560

約数和(自身を除く): 336009400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 137707, 275414, 550828, 688535, 1101656, 1377070, 2754140, 5508280, 6472229, 12944458, 25888916, 32361145, 51777832, 64722290, 129444580, 258889160]

約数ペア:

[(1, 258889160), (2, 129444580), (4, 64722290), (5, 51777832), (8, 32361145), (10, 25888916), (20, 12944458), (40, 6472229), (47, 5508280), (94, 2754140), (188, 1377070), (235, 1101656), (376, 688535), (470, 550828), (940, 275414), (1880, 137707)]