31707520

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:172

約数の個数: 128

約数和(自身を含む): 84651840

約数和(自身を除く): 52944320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 64, 65, 74, 80, 103, 104, 128, 130, 148, 160, 185, 206, 208, 260, 296, 320, 370, 412, 416, 481, 515, 520, 592, 640, 740, 824, 832, 962, 1030, 1040, 1184, 1339, 1480, 1648, 1664, 1924, 2060, 2080, 2368, 2405, 2678, 2960, 3296, 3811, 3848, 4120, 4160, 4736, 4810, 5356, 5920, 6592, 6695, 7622, 7696, 8240, 8320, 9620, 10712, 11840, 13184, 13390, 15244, 15392, 16480, 19055, 19240, 21424, 23680, 26780, 30488, 30784, 32960, 38110, 38480, 42848, 49543, 53560, 60976, 61568, 65920, 76220, 76960, 85696, 99086, 107120, 121952, 152440, 153920, 171392, 198172, 214240, 243904, 247715, 304880, 307840, 396344, 428480, 487808, 495430, 609760, 792688, 856960, 990860, 1219520, 1585376, 1981720, 2439040, 3170752, 3963440, 6341504, 7926880, 15853760, 31707520]

約数ペア:

[(1, 31707520), (2, 15853760), (4, 7926880), (5, 6341504), (8, 3963440), (10, 3170752), (13, 2439040), (16, 1981720), (20, 1585376), (26, 1219520), (32, 990860), (37, 856960), (40, 792688), (52, 609760), (64, 495430), (65, 487808), (74, 428480), (80, 396344), (103, 307840), (104, 304880), (128, 247715), (130, 243904), (148, 214240), (160, 198172), (185, 171392), (206, 153920), (208, 152440), (260, 121952), (296, 107120), (320, 99086), (370, 85696), (412, 76960), (416, 76220), (481, 65920), (515, 61568), (520, 60976), (592, 53560), (640, 49543), (740, 42848), (824, 38480), (832, 38110), (962, 32960), (1030, 30784), (1040, 30488), (1184, 26780), (1339, 23680), (1480, 21424), (1648, 19240), (1664, 19055), (1924, 16480), (2060, 15392), (2080, 15244), (2368, 13390), (2405, 13184), (2678, 11840), (2960, 10712), (3296, 9620), (3811, 8320), (3848, 8240), (4120, 7696), (4160, 7622), (4736, 6695), (4810, 6592), (5356, 5920)]