28605160

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 66718080

約数和(自身を除く): 38112920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 103, 106, 131, 206, 212, 262, 265, 412, 424, 515, 524, 530, 655, 824, 1030, 1048, 1060, 1310, 2060, 2120, 2620, 4120, 5240, 5459, 6943, 10918, 13493, 13886, 21836, 26986, 27295, 27772, 34715, 43672, 53972, 54590, 55544, 67465, 69430, 107944, 109180, 134930, 138860, 218360, 269860, 277720, 539720, 715129, 1430258, 2860516, 3575645, 5721032, 7151290, 14302580, 28605160]

約数ペア:

[(1, 28605160), (2, 14302580), (4, 7151290), (5, 5721032), (8, 3575645), (10, 2860516), (20, 1430258), (40, 715129), (53, 539720), (103, 277720), (106, 269860), (131, 218360), (206, 138860), (212, 134930), (262, 109180), (265, 107944), (412, 69430), (424, 67465), (515, 55544), (524, 54590), (530, 53972), (655, 43672), (824, 34715), (1030, 27772), (1048, 27295), (1060, 26986), (1310, 21836), (2060, 13886), (2120, 13493), (2620, 10918), (4120, 6943), (5240, 5459)]