878907580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{4099}}^1$

素因数の和:4330

約数の個数: 48

約数和(自身を含む): 1884556800

約数和(自身を除く): 1005649220

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 151, 284, 302, 355, 604, 710, 755, 1420, 1510, 3020, 4099, 8198, 10721, 16396, 20495, 21442, 40990, 42884, 53605, 81980, 107210, 214420, 291029, 582058, 618949, 1164116, 1237898, 1455145, 2475796, 2910290, 3094745, 5820580, 6189490, 12378980, 43945379, 87890758, 175781516, 219726895, 439453790, 878907580]

約数ペア:

[(1, 878907580), (2, 439453790), (4, 219726895), (5, 175781516), (10, 87890758), (20, 43945379), (71, 12378980), (142, 6189490), (151, 5820580), (284, 3094745), (302, 2910290), (355, 2475796), (604, 1455145), (710, 1237898), (755, 1164116), (1420, 618949), (1510, 582058), (3020, 291029), (4099, 214420), (8198, 107210), (10721, 81980), (16396, 53605), (20495, 42884), (21442, 40990)]