121215900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31081}}^1$

素因数の和:31111

約数の個数: 72

約数和(自身を含む): 377708464

約数和(自身を除く): 256492564

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 31081, 62162, 93243, 124324, 155405, 186486, 310810, 372972, 404053, 466215, 621620, 777025, 808106, 932430, 1212159, 1554050, 1616212, 1864860, 2020265, 2331075, 2424318, 3108100, 4040530, 4662150, 4848636, 6060795, 8081060, 9324300, 10101325, 12121590, 20202650, 24243180, 30303975, 40405300, 60607950, 121215900]

約数ペア:

[(1, 121215900), (2, 60607950), (3, 40405300), (4, 30303975), (5, 24243180), (6, 20202650), (10, 12121590), (12, 10101325), (13, 9324300), (15, 8081060), (20, 6060795), (25, 4848636), (26, 4662150), (30, 4040530), (39, 3108100), (50, 2424318), (52, 2331075), (60, 2020265), (65, 1864860), (75, 1616212), (78, 1554050), (100, 1212159), (130, 932430), (150, 808106), (156, 777025), (195, 621620), (260, 466215), (300, 404053), (325, 372972), (390, 310810), (650, 186486), (780, 155405), (975, 124324), (1300, 93243), (1950, 62162), (3900, 31081)]