2455720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^2\times {\mathrm{73}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 5800860

約数和(自身を除く): 3345140

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 73, 116, 145, 146, 232, 290, 292, 365, 580, 584, 730, 841, 1160, 1460, 1682, 2117, 2920, 3364, 4205, 4234, 6728, 8410, 8468, 10585, 16820, 16936, 21170, 33640, 42340, 61393, 84680, 122786, 245572, 306965, 491144, 613930, 1227860, 2455720]

約数ペア:

[(1, 2455720), (2, 1227860), (4, 613930), (5, 491144), (8, 306965), (10, 245572), (20, 122786), (29, 84680), (40, 61393), (58, 42340), (73, 33640), (116, 21170), (145, 16936), (146, 16820), (232, 10585), (290, 8468), (292, 8410), (365, 6728), (580, 4234), (584, 4205), (730, 3364), (841, 2920), (1160, 2117), (1460, 1682)]