28515370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{359}}^1$

素因数の和:439

約数の個数: 48

約数和(自身を含む): 56920320

約数和(自身を除く): 28404950

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 169, 235, 338, 359, 470, 611, 718, 845, 1222, 1690, 1795, 3055, 3590, 4667, 6110, 7943, 9334, 15886, 16873, 23335, 33746, 39715, 46670, 60671, 79430, 84365, 121342, 168730, 219349, 303355, 438698, 606710, 1096745, 2193490, 2851537, 5703074, 14257685, 28515370]

約数ペア:

[(1, 28515370), (2, 14257685), (5, 5703074), (10, 2851537), (13, 2193490), (26, 1096745), (47, 606710), (65, 438698), (94, 303355), (130, 219349), (169, 168730), (235, 121342), (338, 84365), (359, 79430), (470, 60671), (611, 46670), (718, 39715), (845, 33746), (1222, 23335), (1690, 16873), (1795, 15886), (3055, 9334), (3590, 7943), (4667, 6110)]