31989958

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2$

素因数の和:110

約数の個数: 96

約数和(自身を含む): 70237440

約数和(自身を除く): 38247482

約数列:

[1, 2, 7, 11, 13, 14, 19, 22, 26, 29, 38, 58, 77, 91, 133, 143, 154, 182, 203, 209, 247, 266, 286, 319, 377, 406, 418, 494, 551, 638, 754, 841, 1001, 1102, 1463, 1682, 1729, 2002, 2233, 2639, 2717, 2926, 3458, 3857, 4147, 4466, 5278, 5434, 5887, 6061, 7163, 7714, 8294, 9251, 10933, 11774, 12122, 14326, 15979, 18502, 19019, 21866, 29029, 31958, 38038, 42427, 50141, 58058, 64757, 76531, 78793, 84854, 100282, 111853, 120263, 129514, 153062, 157586, 175769, 207727, 223706, 240526, 351538, 415454, 551551, 841841, 1103102, 1230383, 1454089, 1683682, 2284997, 2460766, 2908178, 4569994, 15994979, 31989958]

約数ペア:

[(1, 31989958), (2, 15994979), (7, 4569994), (11, 2908178), (13, 2460766), (14, 2284997), (19, 1683682), (22, 1454089), (26, 1230383), (29, 1103102), (38, 841841), (58, 551551), (77, 415454), (91, 351538), (133, 240526), (143, 223706), (154, 207727), (182, 175769), (203, 157586), (209, 153062), (247, 129514), (266, 120263), (286, 111853), (319, 100282), (377, 84854), (406, 78793), (418, 76531), (494, 64757), (551, 58058), (638, 50141), (754, 42427), (841, 38038), (1001, 31958), (1102, 29029), (1463, 21866), (1682, 19019), (1729, 18502), (2002, 15979), (2233, 14326), (2639, 12122), (2717, 11774), (2926, 10933), (3458, 9251), (3857, 8294), (4147, 7714), (4466, 7163), (5278, 6061), (5434, 5887)]