394400

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:66

約数の個数: 72

約数和(自身を含む): 1054620

約数和(自身を除く): 660220

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 29, 32, 34, 40, 50, 58, 68, 80, 85, 100, 116, 136, 145, 160, 170, 200, 232, 272, 290, 340, 400, 425, 464, 493, 544, 580, 680, 725, 800, 850, 928, 986, 1160, 1360, 1450, 1700, 1972, 2320, 2465, 2720, 2900, 3400, 3944, 4640, 4930, 5800, 6800, 7888, 9860, 11600, 12325, 13600, 15776, 19720, 23200, 24650, 39440, 49300, 78880, 98600, 197200, 394400]

約数ペア:

[(1, 394400), (2, 197200), (4, 98600), (5, 78880), (8, 49300), (10, 39440), (16, 24650), (17, 23200), (20, 19720), (25, 15776), (29, 13600), (32, 12325), (34, 11600), (40, 9860), (50, 7888), (58, 6800), (68, 5800), (80, 4930), (85, 4640), (100, 3944), (116, 3400), (136, 2900), (145, 2720), (160, 2465), (170, 2320), (200, 1972), (232, 1700), (272, 1450), (290, 1360), (340, 1160), (400, 986), (425, 928), (464, 850), (493, 800), (544, 725), (580, 680)]