20021716

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 45722880

約数和(自身を除く): 25701164

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 29, 34, 44, 52, 58, 68, 71, 116, 142, 143, 187, 221, 284, 286, 319, 374, 377, 442, 493, 572, 638, 748, 754, 781, 884, 923, 986, 1207, 1276, 1508, 1562, 1846, 1972, 2059, 2414, 2431, 3124, 3692, 4118, 4147, 4828, 4862, 5423, 6409, 8236, 8294, 9724, 10153, 10846, 12818, 13277, 15691, 16588, 20306, 21692, 22649, 25636, 26554, 26767, 31382, 35003, 40612, 45298, 53108, 53534, 62764, 70006, 70499, 90596, 107068, 140012, 140998, 172601, 281996, 294437, 345202, 385033, 455039, 588874, 690404, 770066, 910078, 1177748, 1540132, 1820156, 5005429, 10010858, 20021716]

約数ペア:

[(1, 20021716), (2, 10010858), (4, 5005429), (11, 1820156), (13, 1540132), (17, 1177748), (22, 910078), (26, 770066), (29, 690404), (34, 588874), (44, 455039), (52, 385033), (58, 345202), (68, 294437), (71, 281996), (116, 172601), (142, 140998), (143, 140012), (187, 107068), (221, 90596), (284, 70499), (286, 70006), (319, 62764), (374, 53534), (377, 53108), (442, 45298), (493, 40612), (572, 35003), (638, 31382), (748, 26767), (754, 26554), (781, 25636), (884, 22649), (923, 21692), (986, 20306), (1207, 16588), (1276, 15691), (1508, 13277), (1562, 12818), (1846, 10846), (1972, 10153), (2059, 9724), (2414, 8294), (2431, 8236), (3124, 6409), (3692, 5423), (4118, 4862), (4147, 4828)]