158996000

素因数分解:

$2^5\times 5^3\times {\mathrm{39749}}^1$

素因数の和:39774

約数の個数: 48

約数和(自身を含む): 390663000

約数和(自身を除く): 231667000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 39749, 79498, 158996, 198745, 317992, 397490, 635984, 794980, 993725, 1271968, 1589960, 1987450, 3179920, 3974900, 4968625, 6359840, 7949800, 9937250, 15899600, 19874500, 31799200, 39749000, 79498000, 158996000]

約数ペア:

[(1, 158996000), (2, 79498000), (4, 39749000), (5, 31799200), (8, 19874500), (10, 15899600), (16, 9937250), (20, 7949800), (25, 6359840), (32, 4968625), (40, 3974900), (50, 3179920), (80, 1987450), (100, 1589960), (125, 1271968), (160, 993725), (200, 794980), (250, 635984), (400, 397490), (500, 317992), (800, 198745), (1000, 158996), (2000, 79498), (4000, 39749)]