289752820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{9281}}^1$

素因数の和:9520

約数の個数: 48

約数和(自身を含む): 698600448

約数和(自身を除く): 408847628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 892, 1115, 1561, 2230, 3122, 4460, 6244, 7805, 9281, 15610, 18562, 31220, 37124, 46405, 64967, 92810, 129934, 185620, 259868, 324835, 649670, 1299340, 2069663, 4139326, 8278652, 10348315, 14487641, 20696630, 28975282, 41393260, 57950564, 72438205, 144876410, 289752820]

約数ペア:

[(1, 289752820), (2, 144876410), (4, 72438205), (5, 57950564), (7, 41393260), (10, 28975282), (14, 20696630), (20, 14487641), (28, 10348315), (35, 8278652), (70, 4139326), (140, 2069663), (223, 1299340), (446, 649670), (892, 324835), (1115, 259868), (1561, 185620), (2230, 129934), (3122, 92810), (4460, 64967), (6244, 46405), (7805, 37124), (9281, 31220), (15610, 18562)]