20031928

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 46022400

約数和(自身を除く): 25990472

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 67, 76, 133, 134, 152, 266, 268, 281, 469, 532, 536, 562, 938, 1064, 1124, 1273, 1876, 1967, 2248, 2546, 3752, 3934, 5092, 5339, 7868, 8911, 10184, 10678, 15736, 17822, 18827, 21356, 35644, 37373, 37654, 42712, 71288, 74746, 75308, 131789, 149492, 150616, 263578, 298984, 357713, 527156, 715426, 1054312, 1430852, 2503991, 2861704, 5007982, 10015964, 20031928]

約数ペア:

[(1, 20031928), (2, 10015964), (4, 5007982), (7, 2861704), (8, 2503991), (14, 1430852), (19, 1054312), (28, 715426), (38, 527156), (56, 357713), (67, 298984), (76, 263578), (133, 150616), (134, 149492), (152, 131789), (266, 75308), (268, 74746), (281, 71288), (469, 42712), (532, 37654), (536, 37373), (562, 35644), (938, 21356), (1064, 18827), (1124, 17822), (1273, 15736), (1876, 10678), (1967, 10184), (2248, 8911), (2546, 7868), (3752, 5339), (3934, 5092)]