31690880

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^2\times {\mathrm{293}}^1$

素因数の和:338

約数の個数: 96

約数和(自身を含む): 82317060

約数和(自身を除く): 50626180

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 208, 260, 293, 320, 338, 416, 520, 586, 640, 676, 832, 845, 1040, 1172, 1352, 1465, 1664, 1690, 2080, 2344, 2704, 2930, 3380, 3809, 4160, 4688, 5408, 5860, 6760, 7618, 8320, 9376, 10816, 11720, 13520, 15236, 18752, 19045, 21632, 23440, 27040, 30472, 37504, 38090, 46880, 49517, 54080, 60944, 76180, 93760, 99034, 108160, 121888, 152360, 187520, 198068, 243776, 247585, 304720, 396136, 487552, 495170, 609440, 792272, 990340, 1218880, 1584544, 1980680, 2437760, 3169088, 3961360, 6338176, 7922720, 15845440, 31690880]

約数ペア:

[(1, 31690880), (2, 15845440), (4, 7922720), (5, 6338176), (8, 3961360), (10, 3169088), (13, 2437760), (16, 1980680), (20, 1584544), (26, 1218880), (32, 990340), (40, 792272), (52, 609440), (64, 495170), (65, 487552), (80, 396136), (104, 304720), (128, 247585), (130, 243776), (160, 198068), (169, 187520), (208, 152360), (260, 121888), (293, 108160), (320, 99034), (338, 93760), (416, 76180), (520, 60944), (586, 54080), (640, 49517), (676, 46880), (832, 38090), (845, 37504), (1040, 30472), (1172, 27040), (1352, 23440), (1465, 21632), (1664, 19045), (1690, 18752), (2080, 15236), (2344, 13520), (2704, 11720), (2930, 10816), (3380, 9376), (3809, 8320), (4160, 7618), (4688, 6760), (5408, 5860)]