78428560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3257}}^1$

素因数の和:3320

約数の個数: 80

約数和(自身を含む): 213307776

約数和(自身を除く): 134879216

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 688, 860, 1204, 1505, 1720, 2408, 3010, 3257, 3440, 4816, 6020, 6514, 12040, 13028, 16285, 22799, 24080, 26056, 32570, 45598, 52112, 65140, 91196, 113995, 130280, 140051, 182392, 227990, 260560, 280102, 364784, 455980, 560204, 700255, 911960, 980357, 1120408, 1400510, 1823920, 1960714, 2240816, 2801020, 3921428, 4901785, 5602040, 7842856, 9803570, 11204080, 15685712, 19607140, 39214280, 78428560]

約数ペア:

[(1, 78428560), (2, 39214280), (4, 19607140), (5, 15685712), (7, 11204080), (8, 9803570), (10, 7842856), (14, 5602040), (16, 4901785), (20, 3921428), (28, 2801020), (35, 2240816), (40, 1960714), (43, 1823920), (56, 1400510), (70, 1120408), (80, 980357), (86, 911960), (112, 700255), (140, 560204), (172, 455980), (215, 364784), (280, 280102), (301, 260560), (344, 227990), (430, 182392), (560, 140051), (602, 130280), (688, 113995), (860, 91196), (1204, 65140), (1505, 52112), (1720, 45598), (2408, 32570), (3010, 26056), (3257, 24080), (3440, 22799), (4816, 16285), (6020, 13028), (6514, 12040)]