697000

素因数分解:

$2^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:79

約数の個数: 64

約数和(自身を含む): 1769040

約数和(自身を除く): 1072040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 41, 50, 68, 82, 85, 100, 125, 136, 164, 170, 200, 205, 250, 328, 340, 410, 425, 500, 680, 697, 820, 850, 1000, 1025, 1394, 1640, 1700, 2050, 2125, 2788, 3400, 3485, 4100, 4250, 5125, 5576, 6970, 8200, 8500, 10250, 13940, 17000, 17425, 20500, 27880, 34850, 41000, 69700, 87125, 139400, 174250, 348500, 697000]

約数ペア:

[(1, 697000), (2, 348500), (4, 174250), (5, 139400), (8, 87125), (10, 69700), (17, 41000), (20, 34850), (25, 27880), (34, 20500), (40, 17425), (41, 17000), (50, 13940), (68, 10250), (82, 8500), (85, 8200), (100, 6970), (125, 5576), (136, 5125), (164, 4250), (170, 4100), (200, 3485), (205, 3400), (250, 2788), (328, 2125), (340, 2050), (410, 1700), (425, 1640), (500, 1394), (680, 1025), (697, 1000), (820, 850)]