128548600

素因数分解:

$2^3\times 5^2\times {\mathrm{397}}^1\times {\mathrm{1619}}^1$

素因数の和:2032

約数の個数: 48

約数和(自身を含む): 299813400

約数和(自身を除く): 171264800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 397, 794, 1588, 1619, 1985, 3176, 3238, 3970, 6476, 7940, 8095, 9925, 12952, 15880, 16190, 19850, 32380, 39700, 40475, 64760, 79400, 80950, 161900, 323800, 642743, 1285486, 2570972, 3213715, 5141944, 6427430, 12854860, 16068575, 25709720, 32137150, 64274300, 128548600]

約数ペア:

[(1, 128548600), (2, 64274300), (4, 32137150), (5, 25709720), (8, 16068575), (10, 12854860), (20, 6427430), (25, 5141944), (40, 3213715), (50, 2570972), (100, 1285486), (200, 642743), (397, 323800), (794, 161900), (1588, 80950), (1619, 79400), (1985, 64760), (3176, 40475), (3238, 39700), (3970, 32380), (6476, 19850), (7940, 16190), (8095, 15880), (9925, 12952)]