20742000

素因数分解:

$2^4\times 3^1\times 5^3\times {\mathrm{3457}}^1$

素因数の和:3483

約数の個数: 80

約数和(自身を含む): 66891552

約数和(自身を除く): 46149552

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 125, 150, 200, 240, 250, 300, 375, 400, 500, 600, 750, 1000, 1200, 1500, 2000, 3000, 3457, 6000, 6914, 10371, 13828, 17285, 20742, 27656, 34570, 41484, 51855, 55312, 69140, 82968, 86425, 103710, 138280, 165936, 172850, 207420, 259275, 276560, 345700, 414840, 432125, 518550, 691400, 829680, 864250, 1037100, 1296375, 1382800, 1728500, 2074200, 2592750, 3457000, 4148400, 5185500, 6914000, 10371000, 20742000]

約数ペア:

[(1, 20742000), (2, 10371000), (3, 6914000), (4, 5185500), (5, 4148400), (6, 3457000), (8, 2592750), (10, 2074200), (12, 1728500), (15, 1382800), (16, 1296375), (20, 1037100), (24, 864250), (25, 829680), (30, 691400), (40, 518550), (48, 432125), (50, 414840), (60, 345700), (75, 276560), (80, 259275), (100, 207420), (120, 172850), (125, 165936), (150, 138280), (200, 103710), (240, 86425), (250, 82968), (300, 69140), (375, 55312), (400, 51855), (500, 41484), (600, 34570), (750, 27656), (1000, 20742), (1200, 17285), (1500, 13828), (2000, 10371), (3000, 6914), (3457, 6000)]