71291620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1\times {\mathrm{383}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 154441728

約数和(自身を除く): 83150108

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 227, 383, 410, 454, 766, 820, 908, 1135, 1532, 1915, 2270, 3830, 4540, 7660, 9307, 15703, 18614, 31406, 37228, 46535, 62812, 78515, 86941, 93070, 157030, 173882, 186140, 314060, 347764, 434705, 869410, 1738820, 3564581, 7129162, 14258324, 17822905, 35645810, 71291620]

約数ペア:

[(1, 71291620), (2, 35645810), (4, 17822905), (5, 14258324), (10, 7129162), (20, 3564581), (41, 1738820), (82, 869410), (164, 434705), (205, 347764), (227, 314060), (383, 186140), (410, 173882), (454, 157030), (766, 93070), (820, 86941), (908, 78515), (1135, 62812), (1532, 46535), (1915, 37228), (2270, 31406), (3830, 18614), (4540, 15703), (7660, 9307)]