1385403971

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1\times {\mathrm{229}}^1$

素因数の和:579

約数の個数: 32

約数和(自身を含む): 1651584000

約数和(自身を除く): 266180029

約数列:

[1, 7, 43, 101, 199, 229, 301, 707, 1393, 1603, 4343, 8557, 9847, 20099, 23129, 30401, 45571, 59899, 68929, 140693, 161903, 318997, 864257, 994547, 1959553, 4602671, 6049799, 6961829, 13716871, 32218697, 197914853, 1385403971]

約数ペア:

[(1, 1385403971), (7, 197914853), (43, 32218697), (101, 13716871), (199, 6961829), (229, 6049799), (301, 4602671), (707, 1959553), (1393, 994547), (1603, 864257), (4343, 318997), (8557, 161903), (9847, 140693), (20099, 68929), (23129, 59899), (30401, 45571)]