19390880

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7129}}^1$

素因数の和:7161

約数の個数: 48

約数和(自身を含む): 48512520

約数和(自身を除く): 29121640

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 7129, 14258, 28516, 35645, 57032, 71290, 114064, 121193, 142580, 228128, 242386, 285160, 484772, 570320, 605965, 969544, 1140640, 1211930, 1939088, 2423860, 3878176, 4847720, 9695440, 19390880]

約数ペア:

[(1, 19390880), (2, 9695440), (4, 4847720), (5, 3878176), (8, 2423860), (10, 1939088), (16, 1211930), (17, 1140640), (20, 969544), (32, 605965), (34, 570320), (40, 484772), (68, 285160), (80, 242386), (85, 228128), (136, 142580), (160, 121193), (170, 114064), (272, 71290), (340, 57032), (544, 35645), (680, 28516), (1360, 14258), (2720, 7129)]