16839640

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^2\times {\mathrm{79}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 38901600

約数和(自身を除く): 22061960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 79, 146, 158, 292, 316, 365, 395, 584, 632, 730, 790, 1460, 1580, 2920, 3160, 5329, 5767, 10658, 11534, 21316, 23068, 26645, 28835, 42632, 46136, 53290, 57670, 106580, 115340, 213160, 230680, 420991, 841982, 1683964, 2104955, 3367928, 4209910, 8419820, 16839640]

約数ペア:

[(1, 16839640), (2, 8419820), (4, 4209910), (5, 3367928), (8, 2104955), (10, 1683964), (20, 841982), (40, 420991), (73, 230680), (79, 213160), (146, 115340), (158, 106580), (292, 57670), (316, 53290), (365, 46136), (395, 42632), (584, 28835), (632, 26645), (730, 23068), (790, 21316), (1460, 11534), (1580, 10658), (2920, 5767), (3160, 5329)]