20803584008

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1\times {\mathrm{2389}}^1$

素因数の和:2766

約数の個数: 64

約数和(自身を含む): 40473216000

約数和(自身を除く): 19669631992

約数列:

[1, 2, 4, 8, 41, 82, 139, 164, 191, 278, 328, 382, 556, 764, 1112, 1528, 2389, 4778, 5699, 7831, 9556, 11398, 15662, 19112, 22796, 26549, 31324, 45592, 53098, 62648, 97949, 106196, 195898, 212392, 332071, 391796, 456299, 664142, 783592, 912598, 1088509, 1328284, 1825196, 2177018, 2656568, 3650392, 4354036, 8708072, 13614911, 18708259, 27229822, 37416518, 54459644, 63425561, 74833036, 108919288, 126851122, 149666072, 253702244, 507404488, 2600448001, 5200896002, 10401792004, 20803584008]

約数ペア:

[(1, 20803584008), (2, 10401792004), (4, 5200896002), (8, 2600448001), (41, 507404488), (82, 253702244), (139, 149666072), (164, 126851122), (191, 108919288), (278, 74833036), (328, 63425561), (382, 54459644), (556, 37416518), (764, 27229822), (1112, 18708259), (1528, 13614911), (2389, 8708072), (4778, 4354036), (5699, 3650392), (7831, 2656568), (9556, 2177018), (11398, 1825196), (15662, 1328284), (19112, 1088509), (22796, 912598), (26549, 783592), (31324, 664142), (45592, 456299), (53098, 391796), (62648, 332071), (97949, 212392), (106196, 195898)]