31465840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{349}}^1$

素因数の和:399

約数の個数: 120

約数和(自身を含む): 89056800

約数和(自身を除く): 57590960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 161, 184, 196, 230, 245, 280, 322, 349, 368, 392, 460, 490, 560, 644, 698, 784, 805, 920, 980, 1127, 1288, 1396, 1610, 1745, 1840, 1960, 2254, 2443, 2576, 2792, 3220, 3490, 3920, 4508, 4886, 5584, 5635, 6440, 6980, 8027, 9016, 9772, 11270, 12215, 12880, 13960, 16054, 17101, 18032, 19544, 22540, 24430, 27920, 32108, 34202, 39088, 40135, 45080, 48860, 56189, 64216, 68404, 80270, 85505, 90160, 97720, 112378, 128432, 136808, 160540, 171010, 195440, 224756, 273616, 280945, 321080, 342020, 393323, 449512, 561890, 642160, 684040, 786646, 899024, 1123780, 1368080, 1573292, 1966615, 2247560, 3146584, 3933230, 4495120, 6293168, 7866460, 15732920, 31465840]

約数ペア:

[(1, 31465840), (2, 15732920), (4, 7866460), (5, 6293168), (7, 4495120), (8, 3933230), (10, 3146584), (14, 2247560), (16, 1966615), (20, 1573292), (23, 1368080), (28, 1123780), (35, 899024), (40, 786646), (46, 684040), (49, 642160), (56, 561890), (70, 449512), (80, 393323), (92, 342020), (98, 321080), (112, 280945), (115, 273616), (140, 224756), (161, 195440), (184, 171010), (196, 160540), (230, 136808), (245, 128432), (280, 112378), (322, 97720), (349, 90160), (368, 85505), (392, 80270), (460, 68404), (490, 64216), (560, 56189), (644, 48860), (698, 45080), (784, 40135), (805, 39088), (920, 34202), (980, 32108), (1127, 27920), (1288, 24430), (1396, 22540), (1610, 19544), (1745, 18032), (1840, 17101), (1960, 16054), (2254, 13960), (2443, 12880), (2576, 12215), (2792, 11270), (3220, 9772), (3490, 9016), (3920, 8027), (4508, 6980), (4886, 6440), (5584, 5635)]