49685720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2909}}^1$

素因数の和:2988

約数の個数: 64

約数和(自身を含む): 129902400

約数和(自身を除く): 80216680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 854, 1220, 1708, 2135, 2440, 2909, 3416, 4270, 5818, 8540, 11636, 14545, 17080, 20363, 23272, 29090, 40726, 58180, 81452, 101815, 116360, 162904, 177449, 203630, 354898, 407260, 709796, 814520, 887245, 1242143, 1419592, 1774490, 2484286, 3548980, 4968572, 6210715, 7097960, 9937144, 12421430, 24842860, 49685720]

約数ペア:

[(1, 49685720), (2, 24842860), (4, 12421430), (5, 9937144), (7, 7097960), (8, 6210715), (10, 4968572), (14, 3548980), (20, 2484286), (28, 1774490), (35, 1419592), (40, 1242143), (56, 887245), (61, 814520), (70, 709796), (122, 407260), (140, 354898), (244, 203630), (280, 177449), (305, 162904), (427, 116360), (488, 101815), (610, 81452), (854, 58180), (1220, 40726), (1708, 29090), (2135, 23272), (2440, 20363), (2909, 17080), (3416, 14545), (4270, 11636), (5818, 8540)]