64895420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1987}}^1$

素因数の和:2090

約数の個数: 48

約数和(自身を含む): 144281088

約数和(自身を除く): 79385668

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 71, 92, 115, 142, 230, 284, 355, 460, 710, 1420, 1633, 1987, 3266, 3974, 6532, 7948, 8165, 9935, 16330, 19870, 32660, 39740, 45701, 91402, 141077, 182804, 228505, 282154, 457010, 564308, 705385, 914020, 1410770, 2821540, 3244771, 6489542, 12979084, 16223855, 32447710, 64895420]

約数ペア:

[(1, 64895420), (2, 32447710), (4, 16223855), (5, 12979084), (10, 6489542), (20, 3244771), (23, 2821540), (46, 1410770), (71, 914020), (92, 705385), (115, 564308), (142, 457010), (230, 282154), (284, 228505), (355, 182804), (460, 141077), (710, 91402), (1420, 45701), (1633, 39740), (1987, 32660), (3266, 19870), (3974, 16330), (6532, 9935), (7948, 8165)]