80415680

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{3181}}^1$

素因数の和:3277

約数の個数: 56

約数和(自身を含む): 193974720

約数和(自身を除く): 113559040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 790, 1264, 1580, 2528, 3160, 3181, 5056, 6320, 6362, 12640, 12724, 15905, 25280, 25448, 31810, 50896, 63620, 101792, 127240, 203584, 251299, 254480, 502598, 508960, 1005196, 1017920, 1256495, 2010392, 2512990, 4020784, 5025980, 8041568, 10051960, 16083136, 20103920, 40207840, 80415680]

約数ペア:

[(1, 80415680), (2, 40207840), (4, 20103920), (5, 16083136), (8, 10051960), (10, 8041568), (16, 5025980), (20, 4020784), (32, 2512990), (40, 2010392), (64, 1256495), (79, 1017920), (80, 1005196), (158, 508960), (160, 502598), (316, 254480), (320, 251299), (395, 203584), (632, 127240), (790, 101792), (1264, 63620), (1580, 50896), (2528, 31810), (3160, 25448), (3181, 25280), (5056, 15905), (6320, 12724), (6362, 12640)]