64429240

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{20389}}^1$

素因数の和:20479

約数の個数: 32

約数和(自身を含む): 146808000

約数和(自身を除く): 82378760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 20389, 40778, 81556, 101945, 163112, 203890, 407780, 815560, 1610731, 3221462, 6442924, 8053655, 12885848, 16107310, 32214620, 64429240]

約数ペア:

[(1, 64429240), (2, 32214620), (4, 16107310), (5, 12885848), (8, 8053655), (10, 6442924), (20, 3221462), (40, 1610731), (79, 815560), (158, 407780), (316, 203890), (395, 163112), (632, 101945), (790, 81556), (1580, 40778), (3160, 20389)]