128438900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{55843}}^1$

素因数の和:55880

約数の個数: 36

約数和(自身を含む): 290835552

約数和(自身を除く): 162396652

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 230, 460, 575, 1150, 2300, 55843, 111686, 223372, 279215, 558430, 1116860, 1284389, 1396075, 2568778, 2792150, 5137556, 5584300, 6421945, 12843890, 25687780, 32109725, 64219450, 128438900]

約数ペア:

[(1, 128438900), (2, 64219450), (4, 32109725), (5, 25687780), (10, 12843890), (20, 6421945), (23, 5584300), (25, 5137556), (46, 2792150), (50, 2568778), (92, 1396075), (100, 1284389), (115, 1116860), (230, 558430), (460, 279215), (575, 223372), (1150, 111686), (2300, 55843)]