138938968

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{457}}^1$

素因数の和:620

約数の個数: 64

約数和(自身を含む): 306676800

約数和(自身を除く): 167737832

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 89, 122, 178, 244, 356, 427, 457, 488, 623, 712, 854, 914, 1246, 1708, 1828, 2492, 3199, 3416, 3656, 4984, 5429, 6398, 10858, 12796, 21716, 25592, 27877, 38003, 40673, 43432, 55754, 76006, 81346, 111508, 152012, 162692, 195139, 223016, 284711, 304024, 325384, 390278, 569422, 780556, 1138844, 1561112, 2277688, 2481053, 4962106, 9924212, 17367371, 19848424, 34734742, 69469484, 138938968]

約数ペア:

[(1, 138938968), (2, 69469484), (4, 34734742), (7, 19848424), (8, 17367371), (14, 9924212), (28, 4962106), (56, 2481053), (61, 2277688), (89, 1561112), (122, 1138844), (178, 780556), (244, 569422), (356, 390278), (427, 325384), (457, 304024), (488, 284711), (623, 223016), (712, 195139), (854, 162692), (914, 152012), (1246, 111508), (1708, 81346), (1828, 76006), (2492, 55754), (3199, 43432), (3416, 40673), (3656, 38003), (4984, 27877), (5429, 25592), (6398, 21716), (10858, 12796)]