80940400

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{11903}}^1$

素因数の和:11938

約数の個数: 60

約数和(自身を含む): 205915392

約数和(自身を除く): 124974992

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1700, 3400, 6800, 11903, 23806, 47612, 59515, 95224, 119030, 190448, 202351, 238060, 297575, 404702, 476120, 595150, 809404, 952240, 1011755, 1190300, 1618808, 2023510, 2380600, 3237616, 4047020, 4761200, 5058775, 8094040, 10117550, 16188080, 20235100, 40470200, 80940400]

約数ペア:

[(1, 80940400), (2, 40470200), (4, 20235100), (5, 16188080), (8, 10117550), (10, 8094040), (16, 5058775), (17, 4761200), (20, 4047020), (25, 3237616), (34, 2380600), (40, 2023510), (50, 1618808), (68, 1190300), (80, 1011755), (85, 952240), (100, 809404), (136, 595150), (170, 476120), (200, 404702), (272, 297575), (340, 238060), (400, 202351), (425, 190448), (680, 119030), (850, 95224), (1360, 59515), (1700, 47612), (3400, 23806), (6800, 11903)]