199907680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{178489}}^1$

素因数の和:178511

約数の個数: 48

約数和(自身を含む): 539753760

約数和(自身を除く): 339846080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 178489, 356978, 713956, 892445, 1249423, 1427912, 1784890, 2498846, 2855824, 3569780, 4997692, 5711648, 6247115, 7139560, 9995384, 12494230, 14279120, 19990768, 24988460, 28558240, 39981536, 49976920, 99953840, 199907680]

約数ペア:

[(1, 199907680), (2, 99953840), (4, 49976920), (5, 39981536), (7, 28558240), (8, 24988460), (10, 19990768), (14, 14279120), (16, 12494230), (20, 9995384), (28, 7139560), (32, 6247115), (35, 5711648), (40, 4997692), (56, 3569780), (70, 2855824), (80, 2498846), (112, 1784890), (140, 1427912), (160, 1249423), (224, 892445), (280, 713956), (560, 356978), (1120, 178489)]