25948520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 63504000

約数和(自身を除く): 37555480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 139, 260, 278, 359, 520, 556, 695, 718, 1112, 1390, 1436, 1795, 1807, 2780, 2872, 3590, 3614, 4667, 5560, 7180, 7228, 9035, 9334, 14360, 14456, 18070, 18668, 23335, 36140, 37336, 46670, 49901, 72280, 93340, 99802, 186680, 199604, 249505, 399208, 499010, 648713, 998020, 1297426, 1996040, 2594852, 3243565, 5189704, 6487130, 12974260, 25948520]

約数ペア:

[(1, 25948520), (2, 12974260), (4, 6487130), (5, 5189704), (8, 3243565), (10, 2594852), (13, 1996040), (20, 1297426), (26, 998020), (40, 648713), (52, 499010), (65, 399208), (104, 249505), (130, 199604), (139, 186680), (260, 99802), (278, 93340), (359, 72280), (520, 49901), (556, 46670), (695, 37336), (718, 36140), (1112, 23335), (1390, 18668), (1436, 18070), (1795, 14456), (1807, 14360), (2780, 9334), (2872, 9035), (3590, 7228), (3614, 7180), (4667, 5560)]