405471760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{1061}}^1$

素因数の和:1372

約数の個数: 80

約数和(自身を含む): 1002672432

約数和(自身を除く): 597200672

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 281, 340, 562, 680, 1061, 1124, 1360, 1405, 2122, 2248, 2810, 4244, 4496, 4777, 5305, 5620, 8488, 9554, 10610, 11240, 16976, 18037, 19108, 21220, 22480, 23885, 36074, 38216, 42440, 47770, 72148, 76432, 84880, 90185, 95540, 144296, 180370, 191080, 288592, 298141, 360740, 382160, 596282, 721480, 1192564, 1442960, 1490705, 2385128, 2981410, 4770256, 5068397, 5962820, 10136794, 11925640, 20273588, 23851280, 25341985, 40547176, 50683970, 81094352, 101367940, 202735880, 405471760]

約数ペア:

[(1, 405471760), (2, 202735880), (4, 101367940), (5, 81094352), (8, 50683970), (10, 40547176), (16, 25341985), (17, 23851280), (20, 20273588), (34, 11925640), (40, 10136794), (68, 5962820), (80, 5068397), (85, 4770256), (136, 2981410), (170, 2385128), (272, 1490705), (281, 1442960), (340, 1192564), (562, 721480), (680, 596282), (1061, 382160), (1124, 360740), (1360, 298141), (1405, 288592), (2122, 191080), (2248, 180370), (2810, 144296), (4244, 95540), (4496, 90185), (4777, 84880), (5305, 76432), (5620, 72148), (8488, 47770), (9554, 42440), (10610, 38216), (11240, 36074), (16976, 23885), (18037, 22480), (19108, 21220)]