80937440

素因数分解:

$2^5\times 5^1\times {\mathrm{241}}^1\times {\mathrm{2099}}^1$

素因数の和:2355

約数の個数: 48

約数和(自身を含む): 192099600

約数和(自身を除く): 111162160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 241, 482, 964, 1205, 1928, 2099, 2410, 3856, 4198, 4820, 7712, 8396, 9640, 10495, 16792, 19280, 20990, 33584, 38560, 41980, 67168, 83960, 167920, 335840, 505859, 1011718, 2023436, 2529295, 4046872, 5058590, 8093744, 10117180, 16187488, 20234360, 40468720, 80937440]

約数ペア:

[(1, 80937440), (2, 40468720), (4, 20234360), (5, 16187488), (8, 10117180), (10, 8093744), (16, 5058590), (20, 4046872), (32, 2529295), (40, 2023436), (80, 1011718), (160, 505859), (241, 335840), (482, 167920), (964, 83960), (1205, 67168), (1928, 41980), (2099, 38560), (2410, 33584), (3856, 20990), (4198, 19280), (4820, 16792), (7712, 10495), (8396, 9640)]