250000140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{320513}}^1$

素因数の和:320538

約数の個数: 48

約数和(自身を含む): 753848928

約数和(自身を除く): 503848788

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 320513, 641026, 961539, 1282052, 1602565, 1923078, 3205130, 3846156, 4166669, 4807695, 6410260, 8333338, 9615390, 12500007, 16666676, 19230780, 20833345, 25000014, 41666690, 50000028, 62500035, 83333380, 125000070, 250000140]

約数ペア:

[(1, 250000140), (2, 125000070), (3, 83333380), (4, 62500035), (5, 50000028), (6, 41666690), (10, 25000014), (12, 20833345), (13, 19230780), (15, 16666676), (20, 12500007), (26, 9615390), (30, 8333338), (39, 6410260), (52, 4807695), (60, 4166669), (65, 3846156), (78, 3205130), (130, 1923078), (156, 1602565), (195, 1282052), (260, 961539), (390, 641026), (780, 320513)]