1393915

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1$

素因数の和:99

約数の個数: 24

約数和(自身を含む): 1911168

約数和(自身を除く): 517253

約数列:

[1, 5, 17, 23, 31, 85, 115, 155, 391, 527, 529, 713, 1955, 2635, 2645, 3565, 8993, 12121, 16399, 44965, 60605, 81995, 278783, 1393915]

約数ペア:

[(1, 1393915), (5, 278783), (17, 81995), (23, 60605), (31, 44965), (85, 16399), (115, 12121), (155, 8993), (391, 3565), (527, 2645), (529, 2635), (713, 1955)]