278800

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:76

約数の個数: 60

約数和(自身を含む): 726516

約数和(自身を除く): 447716

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 41, 50, 68, 80, 82, 85, 100, 136, 164, 170, 200, 205, 272, 328, 340, 400, 410, 425, 656, 680, 697, 820, 850, 1025, 1360, 1394, 1640, 1700, 2050, 2788, 3280, 3400, 3485, 4100, 5576, 6800, 6970, 8200, 11152, 13940, 16400, 17425, 27880, 34850, 55760, 69700, 139400, 278800]

約数ペア:

[(1, 278800), (2, 139400), (4, 69700), (5, 55760), (8, 34850), (10, 27880), (16, 17425), (17, 16400), (20, 13940), (25, 11152), (34, 8200), (40, 6970), (41, 6800), (50, 5576), (68, 4100), (80, 3485), (82, 3400), (85, 3280), (100, 2788), (136, 2050), (164, 1700), (170, 1640), (200, 1394), (205, 1360), (272, 1025), (328, 850), (340, 820), (400, 697), (410, 680), (425, 656)]