20303968000

素因数分解:

$2^8\times 5^3\times {\mathrm{634499}}^1$

素因数の和:634530

約数の個数: 72

約数和(自身を含む): 50579802000

約数和(自身を除く): 30275834000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 640, 800, 1000, 1280, 1600, 2000, 3200, 4000, 6400, 8000, 16000, 32000, 634499, 1268998, 2537996, 3172495, 5075992, 6344990, 10151984, 12689980, 15862475, 20303968, 25379960, 31724950, 40607936, 50759920, 63449900, 79312375, 81215872, 101519840, 126899800, 158624750, 162431744, 203039680, 253799600, 317249500, 406079360, 507599200, 634499000, 812158720, 1015198400, 1268998000, 2030396800, 2537996000, 4060793600, 5075992000, 10151984000, 20303968000]

約数ペア:

[(1, 20303968000), (2, 10151984000), (4, 5075992000), (5, 4060793600), (8, 2537996000), (10, 2030396800), (16, 1268998000), (20, 1015198400), (25, 812158720), (32, 634499000), (40, 507599200), (50, 406079360), (64, 317249500), (80, 253799600), (100, 203039680), (125, 162431744), (128, 158624750), (160, 126899800), (200, 101519840), (250, 81215872), (256, 79312375), (320, 63449900), (400, 50759920), (500, 40607936), (640, 31724950), (800, 25379960), (1000, 20303968), (1280, 15862475), (1600, 12689980), (2000, 10151984), (3200, 6344990), (4000, 5075992), (6400, 3172495), (8000, 2537996), (16000, 1268998), (32000, 634499)]