18638800

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{2741}}^1$

素因数の和:2776

約数の個数: 60

約数和(自身を含む): 47431116

約数和(自身を除く): 28792316

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, 2741, 3400, 5482, 6800, 10964, 13705, 21928, 27410, 43856, 46597, 54820, 68525, 93194, 109640, 137050, 186388, 219280, 232985, 274100, 372776, 465970, 548200, 745552, 931940, 1096400, 1164925, 1863880, 2329850, 3727760, 4659700, 9319400, 18638800]

約数ペア:

[(1, 18638800), (2, 9319400), (4, 4659700), (5, 3727760), (8, 2329850), (10, 1863880), (16, 1164925), (17, 1096400), (20, 931940), (25, 745552), (34, 548200), (40, 465970), (50, 372776), (68, 274100), (80, 232985), (85, 219280), (100, 186388), (136, 137050), (170, 109640), (200, 93194), (272, 68525), (340, 54820), (400, 46597), (425, 43856), (680, 27410), (850, 21928), (1360, 13705), (1700, 10964), (2741, 6800), (3400, 5482)]