251787060

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{199831}}^1$

素因数の和:199853

約数の個数: 72

約数和(自身を含む): 872866176

約数和(自身を除く): 621079116

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 199831, 399662, 599493, 799324, 999155, 1198986, 1398817, 1798479, 1998310, 2397972, 2797634, 2997465, 3596958, 3996620, 4196451, 5595268, 5994930, 6994085, 7193916, 8392902, 8992395, 11989860, 12589353, 13988170, 16785804, 17984790, 20982255, 25178706, 27976340, 35969580, 41964510, 50357412, 62946765, 83929020, 125893530, 251787060]

約数ペア:

[(1, 251787060), (2, 125893530), (3, 83929020), (4, 62946765), (5, 50357412), (6, 41964510), (7, 35969580), (9, 27976340), (10, 25178706), (12, 20982255), (14, 17984790), (15, 16785804), (18, 13988170), (20, 12589353), (21, 11989860), (28, 8992395), (30, 8392902), (35, 7193916), (36, 6994085), (42, 5994930), (45, 5595268), (60, 4196451), (63, 3996620), (70, 3596958), (84, 2997465), (90, 2797634), (105, 2397972), (126, 1998310), (140, 1798479), (180, 1398817), (210, 1198986), (252, 999155), (315, 799324), (420, 599493), (630, 399662), (1260, 199831)]