79890460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2819}}^1$

素因数の和:2950

約数の個数: 48

約数和(自身を含む): 182397600

約数和(自身を除く): 102507140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1417, 2180, 2819, 2834, 5638, 5668, 7085, 11276, 14095, 14170, 28190, 28340, 36647, 56380, 73294, 146588, 183235, 307271, 366470, 614542, 732940, 1229084, 1536355, 3072710, 3994523, 6145420, 7989046, 15978092, 19972615, 39945230, 79890460]

約数ペア:

[(1, 79890460), (2, 39945230), (4, 19972615), (5, 15978092), (10, 7989046), (13, 6145420), (20, 3994523), (26, 3072710), (52, 1536355), (65, 1229084), (109, 732940), (130, 614542), (218, 366470), (260, 307271), (436, 183235), (545, 146588), (1090, 73294), (1417, 56380), (2180, 36647), (2819, 28340), (2834, 28190), (5638, 14170), (5668, 14095), (7085, 11276)]