1787175080

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1\times {\mathrm{2633}}^1$

素因数の和:2954

約数の個数: 64

約数和(自身を含む): 4096396800

約数和(自身を除く): 2309221720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 239, 284, 355, 478, 568, 710, 956, 1195, 1420, 1912, 2390, 2633, 2840, 4780, 5266, 9560, 10532, 13165, 16969, 21064, 26330, 33938, 52660, 67876, 84845, 105320, 135752, 169690, 186943, 339380, 373886, 629287, 678760, 747772, 934715, 1258574, 1495544, 1869430, 2517148, 3146435, 3738860, 5034296, 6292870, 7477720, 12585740, 25171480, 44679377, 89358754, 178717508, 223396885, 357435016, 446793770, 893587540, 1787175080]

約数ペア:

[(1, 1787175080), (2, 893587540), (4, 446793770), (5, 357435016), (8, 223396885), (10, 178717508), (20, 89358754), (40, 44679377), (71, 25171480), (142, 12585740), (239, 7477720), (284, 6292870), (355, 5034296), (478, 3738860), (568, 3146435), (710, 2517148), (956, 1869430), (1195, 1495544), (1420, 1258574), (1912, 934715), (2390, 747772), (2633, 678760), (2840, 629287), (4780, 373886), (5266, 339380), (9560, 186943), (10532, 169690), (13165, 135752), (16969, 105320), (21064, 84845), (26330, 67876), (33938, 52660)]