51408760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{907}}^1$

素因数の和:1040

約数の個数: 64

約数和(自身を含む): 125848800

約数和(自身を除く): 74440040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 109, 130, 218, 260, 436, 520, 545, 872, 907, 1090, 1417, 1814, 2180, 2834, 3628, 4360, 4535, 5668, 7085, 7256, 9070, 11336, 11791, 14170, 18140, 23582, 28340, 36280, 47164, 56680, 58955, 94328, 98863, 117910, 197726, 235820, 395452, 471640, 494315, 790904, 988630, 1285219, 1977260, 2570438, 3954520, 5140876, 6426095, 10281752, 12852190, 25704380, 51408760]

約数ペア:

[(1, 51408760), (2, 25704380), (4, 12852190), (5, 10281752), (8, 6426095), (10, 5140876), (13, 3954520), (20, 2570438), (26, 1977260), (40, 1285219), (52, 988630), (65, 790904), (104, 494315), (109, 471640), (130, 395452), (218, 235820), (260, 197726), (436, 117910), (520, 98863), (545, 94328), (872, 58955), (907, 56680), (1090, 47164), (1417, 36280), (1814, 28340), (2180, 23582), (2834, 18140), (3628, 14170), (4360, 11791), (4535, 11336), (5668, 9070), (7085, 7256)]