8945960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 21600000

約数和(自身を除く): 12654040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 79, 95, 149, 152, 158, 190, 298, 316, 380, 395, 596, 632, 745, 760, 790, 1192, 1490, 1501, 1580, 2831, 2980, 3002, 3160, 5662, 5960, 6004, 7505, 11324, 11771, 12008, 14155, 15010, 22648, 23542, 28310, 30020, 47084, 56620, 58855, 60040, 94168, 113240, 117710, 223649, 235420, 447298, 470840, 894596, 1118245, 1789192, 2236490, 4472980, 8945960]

約数ペア:

[(1, 8945960), (2, 4472980), (4, 2236490), (5, 1789192), (8, 1118245), (10, 894596), (19, 470840), (20, 447298), (38, 235420), (40, 223649), (76, 117710), (79, 113240), (95, 94168), (149, 60040), (152, 58855), (158, 56620), (190, 47084), (298, 30020), (316, 28310), (380, 23542), (395, 22648), (596, 15010), (632, 14155), (745, 12008), (760, 11771), (790, 11324), (1192, 7505), (1490, 6004), (1501, 5960), (1580, 5662), (2831, 3160), (2980, 3002)]