215070140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{1019}}^1$

素因数の和:1262

約数の個数: 48

約数和(自身を含む): 462157920

約数和(自身を除く): 247087780

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 173, 244, 305, 346, 610, 692, 865, 1019, 1220, 1730, 2038, 3460, 4076, 5095, 10190, 10553, 20380, 21106, 42212, 52765, 62159, 105530, 124318, 176287, 211060, 248636, 310795, 352574, 621590, 705148, 881435, 1243180, 1762870, 3525740, 10753507, 21507014, 43014028, 53767535, 107535070, 215070140]

約数ペア:

[(1, 215070140), (2, 107535070), (4, 53767535), (5, 43014028), (10, 21507014), (20, 10753507), (61, 3525740), (122, 1762870), (173, 1243180), (244, 881435), (305, 705148), (346, 621590), (610, 352574), (692, 310795), (865, 248636), (1019, 211060), (1220, 176287), (1730, 124318), (2038, 105530), (3460, 62159), (4076, 52765), (5095, 42212), (10190, 21106), (10553, 20380)]