20027140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7529}}^1$

素因数の和:7564

約数の個数: 48

約数和(自身を含む): 50601600

約数和(自身を除く): 30574460

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7529, 15058, 30116, 37645, 52703, 75290, 105406, 143051, 150580, 210812, 263515, 286102, 527030, 572204, 715255, 1001357, 1054060, 1430510, 2002714, 2861020, 4005428, 5006785, 10013570, 20027140]

約数ペア:

[(1, 20027140), (2, 10013570), (4, 5006785), (5, 4005428), (7, 2861020), (10, 2002714), (14, 1430510), (19, 1054060), (20, 1001357), (28, 715255), (35, 572204), (38, 527030), (70, 286102), (76, 263515), (95, 210812), (133, 150580), (140, 143051), (190, 105406), (266, 75290), (380, 52703), (532, 37645), (665, 30116), (1330, 15058), (2660, 7529)]