1339400

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 3215940

約数和(自身を除く): 1876540

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 148, 181, 185, 200, 296, 362, 370, 724, 740, 905, 925, 1448, 1480, 1810, 1850, 3620, 3700, 4525, 6697, 7240, 7400, 9050, 13394, 18100, 26788, 33485, 36200, 53576, 66970, 133940, 167425, 267880, 334850, 669700, 1339400]

約数ペア:

[(1, 1339400), (2, 669700), (4, 334850), (5, 267880), (8, 167425), (10, 133940), (20, 66970), (25, 53576), (37, 36200), (40, 33485), (50, 26788), (74, 18100), (100, 13394), (148, 9050), (181, 7400), (185, 7240), (200, 6697), (296, 4525), (362, 3700), (370, 3620), (724, 1850), (740, 1810), (905, 1480), (925, 1448)]