20855600

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{3067}}^1$

素因数の和:3102

約数の個数: 60

約数和(自身を含む): 53070264

約数和(自身を除く): 32214664

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, 3067, 3400, 6134, 6800, 12268, 15335, 24536, 30670, 49072, 52139, 61340, 76675, 104278, 122680, 153350, 208556, 245360, 260695, 306700, 417112, 521390, 613400, 834224, 1042780, 1226800, 1303475, 2085560, 2606950, 4171120, 5213900, 10427800, 20855600]

約数ペア:

[(1, 20855600), (2, 10427800), (4, 5213900), (5, 4171120), (8, 2606950), (10, 2085560), (16, 1303475), (17, 1226800), (20, 1042780), (25, 834224), (34, 613400), (40, 521390), (50, 417112), (68, 306700), (80, 260695), (85, 245360), (100, 208556), (136, 153350), (170, 122680), (200, 104278), (272, 76675), (340, 61340), (400, 52139), (425, 49072), (680, 30670), (850, 24536), (1360, 15335), (1700, 12268), (3067, 6800), (3400, 6134)]