20978077112

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{467}}^1\times {\mathrm{557}}^1\times {\mathrm{593}}^1$

素因数の和:1640

約数の個数: 64

約数和(自身を含む): 41882274720

約数和(自身を除く): 20904197608

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 467, 557, 593, 934, 1114, 1186, 1868, 2228, 2372, 3736, 4456, 4744, 7939, 9469, 10081, 15878, 18938, 20162, 31756, 37876, 40324, 63512, 75752, 80648, 260119, 276931, 330301, 520238, 553862, 660602, 1040476, 1107724, 1321204, 2080952, 2215448, 2642408, 4422023, 4707827, 5615117, 8844046, 9415654, 11230234, 17688092, 18831308, 22460468, 35376184, 37662616, 44920936, 154250567, 308501134, 617002268, 1234004536, 2622259639, 5244519278, 10489038556, 20978077112]

約数ペア:

[(1, 20978077112), (2, 10489038556), (4, 5244519278), (8, 2622259639), (17, 1234004536), (34, 617002268), (68, 308501134), (136, 154250567), (467, 44920936), (557, 37662616), (593, 35376184), (934, 22460468), (1114, 18831308), (1186, 17688092), (1868, 11230234), (2228, 9415654), (2372, 8844046), (3736, 5615117), (4456, 4707827), (4744, 4422023), (7939, 2642408), (9469, 2215448), (10081, 2080952), (15878, 1321204), (18938, 1107724), (20162, 1040476), (31756, 660602), (37876, 553862), (40324, 520238), (63512, 330301), (75752, 276931), (80648, 260119)]