89840000

素因数分解:

$2^7\times 5^4\times {\mathrm{1123}}^1$

素因数の和:1157

約数の個数: 80

約数和(自身を含む): 223850220

約数和(自身を除く): 134010220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 625, 640, 800, 1000, 1123, 1250, 1600, 2000, 2246, 2500, 3200, 4000, 4492, 5000, 5615, 8000, 8984, 10000, 11230, 16000, 17968, 20000, 22460, 28075, 35936, 40000, 44920, 56150, 71872, 80000, 89840, 112300, 140375, 143744, 179680, 224600, 280750, 359360, 449200, 561500, 701875, 718720, 898400, 1123000, 1403750, 1796800, 2246000, 2807500, 3593600, 4492000, 5615000, 8984000, 11230000, 17968000, 22460000, 44920000, 89840000]

約数ペア:

[(1, 89840000), (2, 44920000), (4, 22460000), (5, 17968000), (8, 11230000), (10, 8984000), (16, 5615000), (20, 4492000), (25, 3593600), (32, 2807500), (40, 2246000), (50, 1796800), (64, 1403750), (80, 1123000), (100, 898400), (125, 718720), (128, 701875), (160, 561500), (200, 449200), (250, 359360), (320, 280750), (400, 224600), (500, 179680), (625, 143744), (640, 140375), (800, 112300), (1000, 89840), (1123, 80000), (1250, 71872), (1600, 56150), (2000, 44920), (2246, 40000), (2500, 35936), (3200, 28075), (4000, 22460), (4492, 20000), (5000, 17968), (5615, 16000), (8000, 11230), (8984, 10000)]