55338680

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 129276000

約数和(自身を除く): 73937320

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 139, 148, 185, 269, 278, 296, 370, 538, 556, 695, 740, 1076, 1112, 1345, 1390, 1480, 2152, 2690, 2780, 5143, 5380, 5560, 9953, 10286, 10760, 19906, 20572, 25715, 37391, 39812, 41144, 49765, 51430, 74782, 79624, 99530, 102860, 149564, 186955, 199060, 205720, 299128, 373910, 398120, 747820, 1383467, 1495640, 2766934, 5533868, 6917335, 11067736, 13834670, 27669340, 55338680]

約数ペア:

[(1, 55338680), (2, 27669340), (4, 13834670), (5, 11067736), (8, 6917335), (10, 5533868), (20, 2766934), (37, 1495640), (40, 1383467), (74, 747820), (139, 398120), (148, 373910), (185, 299128), (269, 205720), (278, 199060), (296, 186955), (370, 149564), (538, 102860), (556, 99530), (695, 79624), (740, 74782), (1076, 51430), (1112, 49765), (1345, 41144), (1390, 39812), (1480, 37391), (2152, 25715), (2690, 20572), (2780, 19906), (5143, 10760), (5380, 10286), (5560, 9953)]