177777990

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16883}}^1$

素因数の和:16915

約数の個数: 80

約数和(自身を含む): 514826928

約数和(自身を除く): 337048938

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 90, 117, 130, 135, 162, 195, 234, 270, 351, 390, 405, 585, 702, 810, 1053, 1170, 1755, 2106, 3510, 5265, 10530, 16883, 33766, 50649, 84415, 101298, 151947, 168830, 219479, 253245, 303894, 438958, 455841, 506490, 658437, 759735, 911682, 1097395, 1316874, 1367523, 1519470, 1975311, 2194790, 2279205, 2735046, 3292185, 3950622, 4558410, 5925933, 6584370, 6837615, 9876555, 11851866, 13675230, 17777799, 19753110, 29629665, 35555598, 59259330, 88888995, 177777990]

約数ペア:

[(1, 177777990), (2, 88888995), (3, 59259330), (5, 35555598), (6, 29629665), (9, 19753110), (10, 17777799), (13, 13675230), (15, 11851866), (18, 9876555), (26, 6837615), (27, 6584370), (30, 5925933), (39, 4558410), (45, 3950622), (54, 3292185), (65, 2735046), (78, 2279205), (81, 2194790), (90, 1975311), (117, 1519470), (130, 1367523), (135, 1316874), (162, 1097395), (195, 911682), (234, 759735), (270, 658437), (351, 506490), (390, 455841), (405, 438958), (585, 303894), (702, 253245), (810, 219479), (1053, 168830), (1170, 151947), (1755, 101298), (2106, 84415), (3510, 50649), (5265, 33766), (10530, 16883)]