72117640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1423}}^1$

素因数の和:1622

約数の個数: 64

約数和(自身を含む): 186600960

約数和(自身を除く): 114483320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 181, 280, 362, 724, 905, 1267, 1423, 1448, 1810, 2534, 2846, 3620, 5068, 5692, 6335, 7115, 7240, 9961, 10136, 11384, 12670, 14230, 19922, 25340, 28460, 39844, 49805, 50680, 56920, 79688, 99610, 199220, 257563, 398440, 515126, 1030252, 1287815, 1802941, 2060504, 2575630, 3605882, 5151260, 7211764, 9014705, 10302520, 14423528, 18029410, 36058820, 72117640]

約数ペア:

[(1, 72117640), (2, 36058820), (4, 18029410), (5, 14423528), (7, 10302520), (8, 9014705), (10, 7211764), (14, 5151260), (20, 3605882), (28, 2575630), (35, 2060504), (40, 1802941), (56, 1287815), (70, 1030252), (140, 515126), (181, 398440), (280, 257563), (362, 199220), (724, 99610), (905, 79688), (1267, 56920), (1423, 50680), (1448, 49805), (1810, 39844), (2534, 28460), (2846, 25340), (3620, 19922), (5068, 14230), (5692, 12670), (6335, 11384), (7115, 10136), (7240, 9961)]