30788440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 72394560

約数和(自身を除く): 41606120

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 71, 74, 142, 148, 185, 284, 293, 296, 355, 370, 568, 586, 710, 740, 1172, 1420, 1465, 1480, 2344, 2627, 2840, 2930, 5254, 5860, 10508, 10841, 11720, 13135, 20803, 21016, 21682, 26270, 41606, 43364, 52540, 54205, 83212, 86728, 104015, 105080, 108410, 166424, 208030, 216820, 416060, 433640, 769711, 832120, 1539422, 3078844, 3848555, 6157688, 7697110, 15394220, 30788440]

約数ペア:

[(1, 30788440), (2, 15394220), (4, 7697110), (5, 6157688), (8, 3848555), (10, 3078844), (20, 1539422), (37, 832120), (40, 769711), (71, 433640), (74, 416060), (142, 216820), (148, 208030), (185, 166424), (284, 108410), (293, 105080), (296, 104015), (355, 86728), (370, 83212), (568, 54205), (586, 52540), (710, 43364), (740, 41606), (1172, 26270), (1420, 21682), (1465, 21016), (1480, 20803), (2344, 13135), (2627, 11720), (2840, 10841), (2930, 10508), (5254, 5860)]