78521200

素因数分解:

$2^4\times 5^2\times {\mathrm{196303}}^1$

素因数の和:196321

約数の個数: 30

約数和(自身を含む): 188648144

約数和(自身を除く): 110126944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 196303, 392606, 785212, 981515, 1570424, 1963030, 3140848, 3926060, 4907575, 7852120, 9815150, 15704240, 19630300, 39260600, 78521200]

約数ペア:

[(1, 78521200), (2, 39260600), (4, 19630300), (5, 15704240), (8, 9815150), (10, 7852120), (16, 4907575), (20, 3926060), (25, 3140848), (40, 1963030), (50, 1570424), (80, 981515), (100, 785212), (200, 392606), (400, 196303)]