31659440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23279}}^1$

素因数の和:23309

約数の個数: 40

約数和(自身を含む): 77941440

約数和(自身を除く): 46282000

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 23279, 46558, 93116, 116395, 186232, 232790, 372464, 395743, 465580, 791486, 931160, 1582972, 1862320, 1978715, 3165944, 3957430, 6331888, 7914860, 15829720, 31659440]

約数ペア:

[(1, 31659440), (2, 15829720), (4, 7914860), (5, 6331888), (8, 3957430), (10, 3165944), (16, 1978715), (17, 1862320), (20, 1582972), (34, 931160), (40, 791486), (68, 465580), (80, 395743), (85, 372464), (136, 232790), (170, 186232), (272, 116395), (340, 93116), (680, 46558), (1360, 23279)]