31760000

素因数分解:

$2^7\times 5^4\times {\mathrm{397}}^1$

素因数の和:431

約数の個数: 80

約数和(自身を含む): 79263690

約数和(自身を除く): 47503690

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 397, 400, 500, 625, 640, 794, 800, 1000, 1250, 1588, 1600, 1985, 2000, 2500, 3176, 3200, 3970, 4000, 5000, 6352, 7940, 8000, 9925, 10000, 12704, 15880, 16000, 19850, 20000, 25408, 31760, 39700, 40000, 49625, 50816, 63520, 79400, 80000, 99250, 127040, 158800, 198500, 248125, 254080, 317600, 397000, 496250, 635200, 794000, 992500, 1270400, 1588000, 1985000, 3176000, 3970000, 6352000, 7940000, 15880000, 31760000]

約数ペア:

[(1, 31760000), (2, 15880000), (4, 7940000), (5, 6352000), (8, 3970000), (10, 3176000), (16, 1985000), (20, 1588000), (25, 1270400), (32, 992500), (40, 794000), (50, 635200), (64, 496250), (80, 397000), (100, 317600), (125, 254080), (128, 248125), (160, 198500), (200, 158800), (250, 127040), (320, 99250), (397, 80000), (400, 79400), (500, 63520), (625, 50816), (640, 49625), (794, 40000), (800, 39700), (1000, 31760), (1250, 25408), (1588, 20000), (1600, 19850), (1985, 16000), (2000, 15880), (2500, 12704), (3176, 10000), (3200, 9925), (3970, 8000), (4000, 7940), (5000, 6352)]