23978312145

素因数分解:

$3^4\times 5^1\times {\mathrm{59205709}}^1$

素因数の和:59205726

約数の個数: 20

約数和(自身を含む): 42983345460

約数和(自身を除く): 19005033315

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 59205709, 177617127, 296028545, 532851381, 888085635, 1598554143, 2664256905, 4795662429, 7992770715, 23978312145]

約数ペア:

[(1, 23978312145), (3, 7992770715), (5, 4795662429), (9, 2664256905), (15, 1598554143), (27, 888085635), (45, 532851381), (81, 296028545), (135, 177617127), (405, 59205709)]