15982915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 21873600

約数和(自身を除く): 5890685

約数列:

[1, 5, 13, 29, 61, 65, 139, 145, 305, 377, 695, 793, 1769, 1807, 1885, 3965, 4031, 8479, 8845, 9035, 20155, 22997, 42395, 52403, 110227, 114985, 245891, 262015, 551135, 1229455, 3196583, 15982915]

約数ペア:

[(1, 15982915), (5, 3196583), (13, 1229455), (29, 551135), (61, 262015), (65, 245891), (139, 114985), (145, 110227), (305, 52403), (377, 42395), (695, 22997), (793, 20155), (1769, 9035), (1807, 8845), (1885, 8479), (3965, 4031)]