30538820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1609}}^1$

素因数の和:1704

約数の個数: 48

約数和(自身を含む): 70054320

約数和(自身を除く): 39515500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 730, 949, 1460, 1609, 1898, 3218, 3796, 4745, 6436, 8045, 9490, 16090, 18980, 20917, 32180, 41834, 83668, 104585, 117457, 209170, 234914, 418340, 469828, 587285, 1174570, 1526941, 2349140, 3053882, 6107764, 7634705, 15269410, 30538820]

約数ペア:

[(1, 30538820), (2, 15269410), (4, 7634705), (5, 6107764), (10, 3053882), (13, 2349140), (20, 1526941), (26, 1174570), (52, 587285), (65, 469828), (73, 418340), (130, 234914), (146, 209170), (260, 117457), (292, 104585), (365, 83668), (730, 41834), (949, 32180), (1460, 20917), (1609, 18980), (1898, 16090), (3218, 9490), (3796, 8045), (4745, 6436)]