28335125

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:135

約数の個数: 64

約数和(自身を含む): 45287424

約数和(自身を除く): 16952299

約数列:

[1, 5, 7, 13, 25, 35, 47, 53, 65, 91, 125, 175, 235, 265, 325, 329, 371, 455, 611, 689, 875, 1175, 1325, 1625, 1645, 1855, 2275, 2491, 3055, 3445, 4277, 4823, 5875, 6625, 8225, 9275, 11375, 12455, 15275, 17225, 17437, 21385, 24115, 32383, 41125, 46375, 62275, 76375, 86125, 87185, 106925, 120575, 161915, 226681, 311375, 435925, 534625, 602875, 809575, 1133405, 2179625, 4047875, 5667025, 28335125]

約数ペア:

[(1, 28335125), (5, 5667025), (7, 4047875), (13, 2179625), (25, 1133405), (35, 809575), (47, 602875), (53, 534625), (65, 435925), (91, 311375), (125, 226681), (175, 161915), (235, 120575), (265, 106925), (325, 87185), (329, 86125), (371, 76375), (455, 62275), (611, 46375), (689, 41125), (875, 32383), (1175, 24115), (1325, 21385), (1625, 17437), (1645, 17225), (1855, 15275), (2275, 12455), (2491, 11375), (3055, 9275), (3445, 8225), (4277, 6625), (4823, 5875)]