20882140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{307}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 46569600

約数和(自身を除く): 25687460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 179, 190, 307, 358, 380, 614, 716, 895, 1228, 1535, 1790, 3070, 3401, 3580, 5833, 6140, 6802, 11666, 13604, 17005, 23332, 29165, 34010, 54953, 58330, 68020, 109906, 116660, 219812, 274765, 549530, 1044107, 1099060, 2088214, 4176428, 5220535, 10441070, 20882140]

約数ペア:

[(1, 20882140), (2, 10441070), (4, 5220535), (5, 4176428), (10, 2088214), (19, 1099060), (20, 1044107), (38, 549530), (76, 274765), (95, 219812), (179, 116660), (190, 109906), (307, 68020), (358, 58330), (380, 54953), (614, 34010), (716, 29165), (895, 23332), (1228, 17005), (1535, 13604), (1790, 11666), (3070, 6802), (3401, 6140), (3580, 5833)]