87880000

素因数分解:

$2^6\times 5^4\times {\mathrm{13}}^3$

素因数の和:71

約数の個数: 140

約数和(自身を含む): 236065060

約数和(自身を除く): 148185060

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 130, 160, 169, 200, 208, 250, 260, 320, 325, 338, 400, 416, 500, 520, 625, 650, 676, 800, 832, 845, 1000, 1040, 1250, 1300, 1352, 1600, 1625, 1690, 2000, 2080, 2197, 2500, 2600, 2704, 3250, 3380, 4000, 4160, 4225, 4394, 5000, 5200, 5408, 6500, 6760, 8000, 8125, 8450, 8788, 10000, 10400, 10816, 10985, 13000, 13520, 16250, 16900, 17576, 20000, 20800, 21125, 21970, 26000, 27040, 32500, 33800, 35152, 40000, 42250, 43940, 52000, 54080, 54925, 65000, 67600, 70304, 84500, 87880, 104000, 105625, 109850, 130000, 135200, 140608, 169000, 175760, 211250, 219700, 260000, 270400, 274625, 338000, 351520, 422500, 439400, 520000, 549250, 676000, 703040, 845000, 878800, 1098500, 1352000, 1373125, 1690000, 1757600, 2197000, 2746250, 3380000, 3515200, 4394000, 5492500, 6760000, 8788000, 10985000, 17576000, 21970000, 43940000, 87880000]

約数ペア:

[(1, 87880000), (2, 43940000), (4, 21970000), (5, 17576000), (8, 10985000), (10, 8788000), (13, 6760000), (16, 5492500), (20, 4394000), (25, 3515200), (26, 3380000), (32, 2746250), (40, 2197000), (50, 1757600), (52, 1690000), (64, 1373125), (65, 1352000), (80, 1098500), (100, 878800), (104, 845000), (125, 703040), (130, 676000), (160, 549250), (169, 520000), (200, 439400), (208, 422500), (250, 351520), (260, 338000), (320, 274625), (325, 270400), (338, 260000), (400, 219700), (416, 211250), (500, 175760), (520, 169000), (625, 140608), (650, 135200), (676, 130000), (800, 109850), (832, 105625), (845, 104000), (1000, 87880), (1040, 84500), (1250, 70304), (1300, 67600), (1352, 65000), (1600, 54925), (1625, 54080), (1690, 52000), (2000, 43940), (2080, 42250), (2197, 40000), (2500, 35152), (2600, 33800), (2704, 32500), (3250, 27040), (3380, 26000), (4000, 21970), (4160, 21125), (4225, 20800), (4394, 20000), (5000, 17576), (5200, 16900), (5408, 16250), (6500, 13520), (6760, 13000), (8000, 10985), (8125, 10816), (8450, 10400), (8788, 10000)]