1278003318400

素因数分解:

$2^7\times 5^2\times {\mathrm{399376037}}^1$

素因数の和:399376061

約数の個数: 48

約数和(自身を含む): 3157067580390

約数和(自身を除く): 1879064261990

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 399376037, 798752074, 1597504148, 1996880185, 3195008296, 3993760370, 6390016592, 7987520740, 9984400925, 12780033184, 15975041480, 19968801850, 25560066368, 31950082960, 39937603700, 51120132736, 63900165920, 79875207400, 127800331840, 159750414800, 255600663680, 319500829600, 639001659200, 1278003318400]

約数ペア:

[(1, 1278003318400), (2, 639001659200), (4, 319500829600), (5, 255600663680), (8, 159750414800), (10, 127800331840), (16, 79875207400), (20, 63900165920), (25, 51120132736), (32, 39937603700), (40, 31950082960), (50, 25560066368), (64, 19968801850), (80, 15975041480), (100, 12780033184), (128, 9984400925), (160, 7987520740), (200, 6390016592), (320, 3993760370), (400, 3195008296), (640, 1996880185), (800, 1597504148), (1600, 798752074), (3200, 399376037)]