78861960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{499}}^1$

素因数の和:955

約数の個数: 96

約数和(自身を含む): 257400000

約数和(自身を除く): 178538040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 439, 499, 878, 998, 1317, 1497, 1756, 1996, 2195, 2495, 2634, 2994, 3512, 3951, 3992, 4390, 4491, 4990, 5268, 5988, 6585, 7485, 7902, 8780, 8982, 9980, 10536, 11976, 13170, 14970, 15804, 17560, 17964, 19755, 19960, 22455, 26340, 29940, 31608, 35928, 39510, 44910, 52680, 59880, 79020, 89820, 158040, 179640, 219061, 438122, 657183, 876244, 1095305, 1314366, 1752488, 1971549, 2190610, 2628732, 3285915, 3943098, 4381220, 5257464, 6571830, 7886196, 8762440, 9857745, 13143660, 15772392, 19715490, 26287320, 39430980, 78861960]

約数ペア:

[(1, 78861960), (2, 39430980), (3, 26287320), (4, 19715490), (5, 15772392), (6, 13143660), (8, 9857745), (9, 8762440), (10, 7886196), (12, 6571830), (15, 5257464), (18, 4381220), (20, 3943098), (24, 3285915), (30, 2628732), (36, 2190610), (40, 1971549), (45, 1752488), (60, 1314366), (72, 1095305), (90, 876244), (120, 657183), (180, 438122), (360, 219061), (439, 179640), (499, 158040), (878, 89820), (998, 79020), (1317, 59880), (1497, 52680), (1756, 44910), (1996, 39510), (2195, 35928), (2495, 31608), (2634, 29940), (2994, 26340), (3512, 22455), (3951, 19960), (3992, 19755), (4390, 17964), (4491, 17560), (4990, 15804), (5268, 14970), (5988, 13170), (6585, 11976), (7485, 10536), (7902, 9980), (8780, 8982)]