13938920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 33264000

約数和(自身を除く): 19325080

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 109, 115, 139, 184, 218, 230, 278, 436, 460, 545, 556, 695, 872, 920, 1090, 1112, 1390, 2180, 2507, 2780, 3197, 4360, 5014, 5560, 6394, 10028, 12535, 12788, 15151, 15985, 20056, 25070, 25576, 30302, 31970, 50140, 60604, 63940, 75755, 100280, 121208, 127880, 151510, 303020, 348473, 606040, 696946, 1393892, 1742365, 2787784, 3484730, 6969460, 13938920]

約数ペア:

[(1, 13938920), (2, 6969460), (4, 3484730), (5, 2787784), (8, 1742365), (10, 1393892), (20, 696946), (23, 606040), (40, 348473), (46, 303020), (92, 151510), (109, 127880), (115, 121208), (139, 100280), (184, 75755), (218, 63940), (230, 60604), (278, 50140), (436, 31970), (460, 30302), (545, 25576), (556, 25070), (695, 20056), (872, 15985), (920, 15151), (1090, 12788), (1112, 12535), (1390, 10028), (2180, 6394), (2507, 5560), (2780, 5014), (3197, 4360)]