20013012

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{617}}^1$

素因数の和:697

約数の個数: 72

約数和(自身を含む): 54663336

約数和(自身を除く): 34650324

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 53, 68, 102, 106, 153, 159, 204, 212, 306, 318, 477, 612, 617, 636, 901, 954, 1234, 1802, 1851, 1908, 2468, 2703, 3604, 3702, 5406, 5553, 7404, 8109, 10489, 10812, 11106, 16218, 20978, 22212, 31467, 32436, 32701, 41956, 62934, 65402, 94401, 98103, 125868, 130804, 188802, 196206, 294309, 377604, 392412, 555917, 588618, 1111834, 1177236, 1667751, 2223668, 3335502, 5003253, 6671004, 10006506, 20013012]

約数ペア:

[(1, 20013012), (2, 10006506), (3, 6671004), (4, 5003253), (6, 3335502), (9, 2223668), (12, 1667751), (17, 1177236), (18, 1111834), (34, 588618), (36, 555917), (51, 392412), (53, 377604), (68, 294309), (102, 196206), (106, 188802), (153, 130804), (159, 125868), (204, 98103), (212, 94401), (306, 65402), (318, 62934), (477, 41956), (612, 32701), (617, 32436), (636, 31467), (901, 22212), (954, 20978), (1234, 16218), (1802, 11106), (1851, 10812), (1908, 10489), (2468, 8109), (2703, 7404), (3604, 5553), (3702, 5406)]