2021981140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{223}}^2$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 4531736160

約数和(自身を除く): 2509755020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 107, 190, 214, 223, 380, 428, 446, 535, 892, 1070, 1115, 2033, 2140, 2230, 4066, 4237, 4460, 8132, 8474, 10165, 16948, 20330, 21185, 23861, 40660, 42370, 47722, 49729, 84740, 95444, 99458, 119305, 198916, 238610, 248645, 453359, 477220, 497290, 906718, 944851, 994580, 1813436, 1889702, 2266795, 3779404, 4533590, 4724255, 5321003, 9067180, 9448510, 10642006, 18897020, 21284012, 26605015, 53210030, 101099057, 106420060, 202198114, 404396228, 505495285, 1010990570, 2021981140]

約数ペア:

[(1, 2021981140), (2, 1010990570), (4, 505495285), (5, 404396228), (10, 202198114), (19, 106420060), (20, 101099057), (38, 53210030), (76, 26605015), (95, 21284012), (107, 18897020), (190, 10642006), (214, 9448510), (223, 9067180), (380, 5321003), (428, 4724255), (446, 4533590), (535, 3779404), (892, 2266795), (1070, 1889702), (1115, 1813436), (2033, 994580), (2140, 944851), (2230, 906718), (4066, 497290), (4237, 477220), (4460, 453359), (8132, 248645), (8474, 238610), (10165, 198916), (16948, 119305), (20330, 99458), (21185, 95444), (23861, 84740), (40660, 49729), (42370, 47722)]