20784869720

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{607}}^1\times {\mathrm{2467}}^1$

素因数の和:3432

約数の個数: 64

約数和(自身を含む): 46997038080

約数和(自身を除く): 26212168360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 607, 694, 1214, 1388, 1735, 2428, 2467, 2776, 3035, 3470, 4856, 4934, 6070, 6940, 9868, 12140, 12335, 13880, 19736, 24280, 24670, 49340, 98680, 210629, 421258, 842516, 856049, 1053145, 1497469, 1685032, 1712098, 2106290, 2994938, 3424196, 4212580, 4280245, 5989876, 6848392, 7487345, 8425160, 8560490, 11979752, 14974690, 17120980, 29949380, 34241960, 59898760, 519621743, 1039243486, 2078486972, 2598108715, 4156973944, 5196217430, 10392434860, 20784869720]

約数ペア:

[(1, 20784869720), (2, 10392434860), (4, 5196217430), (5, 4156973944), (8, 2598108715), (10, 2078486972), (20, 1039243486), (40, 519621743), (347, 59898760), (607, 34241960), (694, 29949380), (1214, 17120980), (1388, 14974690), (1735, 11979752), (2428, 8560490), (2467, 8425160), (2776, 7487345), (3035, 6848392), (3470, 5989876), (4856, 4280245), (4934, 4212580), (6070, 3424196), (6940, 2994938), (9868, 2106290), (12140, 1712098), (12335, 1685032), (13880, 1497469), (19736, 1053145), (24280, 856049), (24670, 842516), (49340, 421258), (98680, 210629)]