20057350

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 40265280

約数和(自身を除く): 20207930

約数列:

[1, 2, 5, 10, 19, 25, 38, 43, 50, 86, 95, 190, 215, 430, 475, 491, 817, 950, 982, 1075, 1634, 2150, 2455, 4085, 4910, 8170, 9329, 12275, 18658, 20425, 21113, 24550, 40850, 42226, 46645, 93290, 105565, 211130, 233225, 401147, 466450, 527825, 802294, 1055650, 2005735, 4011470, 10028675, 20057350]

約数ペア:

[(1, 20057350), (2, 10028675), (5, 4011470), (10, 2005735), (19, 1055650), (25, 802294), (38, 527825), (43, 466450), (50, 401147), (86, 233225), (95, 211130), (190, 105565), (215, 93290), (430, 46645), (475, 42226), (491, 40850), (817, 24550), (950, 21113), (982, 20425), (1075, 18658), (1634, 12275), (2150, 9329), (2455, 8170), (4085, 4910)]