80327800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{317}}^1$

素因数の和:521

約数の個数: 96

約数和(自身を含む): 215298720

約数和(自身を除く): 134970920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 181, 200, 280, 317, 350, 362, 634, 700, 724, 905, 1267, 1268, 1400, 1448, 1585, 1810, 2219, 2534, 2536, 3170, 3620, 4438, 4525, 5068, 6335, 6340, 7240, 7925, 8876, 9050, 10136, 11095, 12670, 12680, 15850, 17752, 18100, 22190, 25340, 31675, 31700, 36200, 44380, 50680, 55475, 57377, 63350, 63400, 88760, 110950, 114754, 126700, 221900, 229508, 253400, 286885, 401639, 443800, 459016, 573770, 803278, 1147540, 1434425, 1606556, 2008195, 2295080, 2868850, 3213112, 4016390, 5737700, 8032780, 10040975, 11475400, 16065560, 20081950, 40163900, 80327800]

約数ペア:

[(1, 80327800), (2, 40163900), (4, 20081950), (5, 16065560), (7, 11475400), (8, 10040975), (10, 8032780), (14, 5737700), (20, 4016390), (25, 3213112), (28, 2868850), (35, 2295080), (40, 2008195), (50, 1606556), (56, 1434425), (70, 1147540), (100, 803278), (140, 573770), (175, 459016), (181, 443800), (200, 401639), (280, 286885), (317, 253400), (350, 229508), (362, 221900), (634, 126700), (700, 114754), (724, 110950), (905, 88760), (1267, 63400), (1268, 63350), (1400, 57377), (1448, 55475), (1585, 50680), (1810, 44380), (2219, 36200), (2534, 31700), (2536, 31675), (3170, 25340), (3620, 22190), (4438, 18100), (4525, 17752), (5068, 15850), (6335, 12680), (6340, 12670), (7240, 11095), (7925, 10136), (8876, 9050)]