1390442984

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{349709}}^1$

素因数の和:349793

約数の個数: 32

約数和(自身を含む): 3021494400

約数和(自身を除く): 1631051416

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 349709, 699418, 1398836, 2447963, 2797672, 4895926, 9791852, 19583704, 24829339, 49658678, 99317356, 173805373, 198634712, 347610746, 695221492, 1390442984]

約数ペア:

[(1, 1390442984), (2, 695221492), (4, 347610746), (7, 198634712), (8, 173805373), (14, 99317356), (28, 49658678), (56, 24829339), (71, 19583704), (142, 9791852), (284, 4895926), (497, 2797672), (568, 2447963), (994, 1398836), (1988, 699418), (3976, 349709)]