439778890

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{4423}}^1$

素因数の和:4654

約数の個数: 32

約数和(自身を含む): 809698176

約数和(自身を除く): 369919286

約数列:

[1, 2, 5, 10, 61, 122, 163, 305, 326, 610, 815, 1630, 4423, 8846, 9943, 19886, 22115, 44230, 49715, 99430, 269803, 539606, 720949, 1349015, 1441898, 2698030, 3604745, 7209490, 43977889, 87955778, 219889445, 439778890]

約数ペア:

[(1, 439778890), (2, 219889445), (5, 87955778), (10, 43977889), (61, 7209490), (122, 3604745), (163, 2698030), (305, 1441898), (326, 1349015), (610, 720949), (815, 539606), (1630, 269803), (4423, 99430), (8846, 49715), (9943, 44230), (19886, 22115)]