51949300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:565

約数の個数: 72

約数和(自身を含む): 123039000

約数和(自身を除く): 71089700

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 89, 100, 130, 178, 260, 325, 356, 445, 449, 650, 890, 898, 1157, 1300, 1780, 1796, 2225, 2245, 2314, 4450, 4490, 4628, 5785, 5837, 8900, 8980, 11225, 11570, 11674, 22450, 23140, 23348, 28925, 29185, 39961, 44900, 57850, 58370, 79922, 115700, 116740, 145925, 159844, 199805, 291850, 399610, 519493, 583700, 799220, 999025, 1038986, 1998050, 2077972, 2597465, 3996100, 5194930, 10389860, 12987325, 25974650, 51949300]

約数ペア:

[(1, 51949300), (2, 25974650), (4, 12987325), (5, 10389860), (10, 5194930), (13, 3996100), (20, 2597465), (25, 2077972), (26, 1998050), (50, 1038986), (52, 999025), (65, 799220), (89, 583700), (100, 519493), (130, 399610), (178, 291850), (260, 199805), (325, 159844), (356, 145925), (445, 116740), (449, 115700), (650, 79922), (890, 58370), (898, 57850), (1157, 44900), (1300, 39961), (1780, 29185), (1796, 28925), (2225, 23348), (2245, 23140), (2314, 22450), (4450, 11674), (4490, 11570), (4628, 11225), (5785, 8980), (5837, 8900)]