40207840

素因数分解:

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

素因数の和:3275

約数の個数: 48

約数和(自身を含む): 96223680

約数和(自身を除く): 56015840

約数列:

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

約数ペア:

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