31701880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:197

約数の個数: 128

約数和(自身を含む): 88128000

約数和(自身を除く): 56426120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 59, 70, 76, 95, 101, 118, 133, 140, 152, 190, 202, 236, 266, 280, 295, 380, 404, 413, 472, 505, 532, 590, 665, 707, 760, 808, 826, 1010, 1064, 1121, 1180, 1330, 1414, 1652, 1919, 2020, 2065, 2242, 2360, 2660, 2828, 3304, 3535, 3838, 4040, 4130, 4484, 5320, 5605, 5656, 5959, 7070, 7676, 7847, 8260, 8968, 9595, 11210, 11918, 13433, 14140, 15352, 15694, 16520, 19190, 22420, 23836, 26866, 28280, 29795, 31388, 38380, 39235, 41713, 44840, 47672, 53732, 59590, 62776, 67165, 76760, 78470, 83426, 107464, 113221, 119180, 134330, 156940, 166852, 208565, 226442, 238360, 268660, 313880, 333704, 417130, 452884, 537320, 566105, 792547, 834260, 905768, 1132210, 1585094, 1668520, 2264420, 3170188, 3962735, 4528840, 6340376, 7925470, 15850940, 31701880]

約数ペア:

[(1, 31701880), (2, 15850940), (4, 7925470), (5, 6340376), (7, 4528840), (8, 3962735), (10, 3170188), (14, 2264420), (19, 1668520), (20, 1585094), (28, 1132210), (35, 905768), (38, 834260), (40, 792547), (56, 566105), (59, 537320), (70, 452884), (76, 417130), (95, 333704), (101, 313880), (118, 268660), (133, 238360), (140, 226442), (152, 208565), (190, 166852), (202, 156940), (236, 134330), (266, 119180), (280, 113221), (295, 107464), (380, 83426), (404, 78470), (413, 76760), (472, 67165), (505, 62776), (532, 59590), (590, 53732), (665, 47672), (707, 44840), (760, 41713), (808, 39235), (826, 38380), (1010, 31388), (1064, 29795), (1121, 28280), (1180, 26866), (1330, 23836), (1414, 22420), (1652, 19190), (1919, 16520), (2020, 15694), (2065, 15352), (2242, 14140), (2360, 13433), (2660, 11918), (2828, 11210), (3304, 9595), (3535, 8968), (3838, 8260), (4040, 7847), (4130, 7676), (4484, 7070), (5320, 5959), (5605, 5656)]