215681388

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{72767}}^1$

素因数の和:72806

約数の個数: 48

約数和(自身を含む): 570501120

約数和(自身を除く): 354819732

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 494, 741, 988, 1482, 2964, 72767, 145534, 218301, 291068, 436602, 873204, 945971, 1382573, 1891942, 2765146, 2837913, 3783884, 4147719, 5530292, 5675826, 8295438, 11351652, 16590876, 17973449, 35946898, 53920347, 71893796, 107840694, 215681388]

約数ペア:

[(1, 215681388), (2, 107840694), (3, 71893796), (4, 53920347), (6, 35946898), (12, 17973449), (13, 16590876), (19, 11351652), (26, 8295438), (38, 5675826), (39, 5530292), (52, 4147719), (57, 3783884), (76, 2837913), (78, 2765146), (114, 1891942), (156, 1382573), (228, 945971), (247, 873204), (494, 436602), (741, 291068), (988, 218301), (1482, 145534), (2964, 72767)]