402128145

素因数分解:

$3^4\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1549}}^1$

素因数の和:2207

約数の個数: 40

約数和(自身を含む): 722442600

約数和(自身を除く): 320314455

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 641, 1549, 1923, 3205, 4647, 5769, 7745, 9615, 13941, 17307, 23235, 28845, 41823, 51921, 69705, 86535, 125469, 209115, 259605, 627345, 992909, 2978727, 4964545, 8936181, 14893635, 26808543, 44680905, 80425629, 134042715, 402128145]

約数ペア:

[(1, 402128145), (3, 134042715), (5, 80425629), (9, 44680905), (15, 26808543), (27, 14893635), (45, 8936181), (81, 4964545), (135, 2978727), (405, 992909), (641, 627345), (1549, 259605), (1923, 209115), (3205, 125469), (4647, 86535), (5769, 69705), (7745, 51921), (9615, 41823), (13941, 28845), (17307, 23235)]