15402940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{409}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 37195200

約数和(自身を除く): 21792260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 269, 409, 538, 818, 1076, 1345, 1636, 1883, 2045, 2690, 2863, 3766, 4090, 5380, 5726, 7532, 8180, 9415, 11452, 14315, 18830, 28630, 37660, 57260, 110021, 220042, 440084, 550105, 770147, 1100210, 1540294, 2200420, 3080588, 3850735, 7701470, 15402940]

約数ペア:

[(1, 15402940), (2, 7701470), (4, 3850735), (5, 3080588), (7, 2200420), (10, 1540294), (14, 1100210), (20, 770147), (28, 550105), (35, 440084), (70, 220042), (140, 110021), (269, 57260), (409, 37660), (538, 28630), (818, 18830), (1076, 14315), (1345, 11452), (1636, 9415), (1883, 8180), (2045, 7532), (2690, 5726), (2863, 5380), (3766, 4090)]