140003990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{86959}}^1$

素因数の和:86996

約数の個数: 32

約数和(自身を含む): 300533760

約数和(自身を除く): 160529770

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 86959, 173918, 434795, 608713, 869590, 1217426, 2000057, 3043565, 4000114, 6087130, 10000285, 14000399, 20000570, 28000798, 70001995, 140003990]

約数ペア:

[(1, 140003990), (2, 70001995), (5, 28000798), (7, 20000570), (10, 14000399), (14, 10000285), (23, 6087130), (35, 4000114), (46, 3043565), (70, 2000057), (115, 1217426), (161, 869590), (230, 608713), (322, 434795), (805, 173918), (1610, 86959)]