221069680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6857}}^1$

素因数の和:6914

約数の個数: 80

約数和(自身を含む): 571463424

約数和(自身を除く): 350393744

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 6857, 8060, 13714, 16120, 27428, 32240, 34285, 54856, 68570, 89141, 109712, 137140, 178282, 212567, 274280, 356564, 425134, 445705, 548560, 713128, 850268, 891410, 1062835, 1426256, 1700536, 1782820, 2125670, 2763371, 3401072, 3565640, 4251340, 5526742, 7131280, 8502680, 11053484, 13816855, 17005360, 22106968, 27633710, 44213936, 55267420, 110534840, 221069680]

約数ペア:

[(1, 221069680), (2, 110534840), (4, 55267420), (5, 44213936), (8, 27633710), (10, 22106968), (13, 17005360), (16, 13816855), (20, 11053484), (26, 8502680), (31, 7131280), (40, 5526742), (52, 4251340), (62, 3565640), (65, 3401072), (80, 2763371), (104, 2125670), (124, 1782820), (130, 1700536), (155, 1426256), (208, 1062835), (248, 891410), (260, 850268), (310, 713128), (403, 548560), (496, 445705), (520, 425134), (620, 356564), (806, 274280), (1040, 212567), (1240, 178282), (1612, 137140), (2015, 109712), (2480, 89141), (3224, 68570), (4030, 54856), (6448, 34285), (6857, 32240), (8060, 27428), (13714, 16120)]