161218260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{127951}}^1$

素因数の和:127973

約数の個数: 72

約数和(自身を含む): 558894336

約数和(自身を除く): 397676076

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, 127951, 255902, 383853, 511804, 639755, 767706, 895657, 1151559, 1279510, 1535412, 1791314, 1919265, 2303118, 2559020, 2686971, 3582628, 3838530, 4478285, 4606236, 5373942, 5757795, 7677060, 8060913, 8956570, 10747884, 11515590, 13434855, 16121826, 17913140, 23031180, 26869710, 32243652, 40304565, 53739420, 80609130, 161218260]

約数ペア:

[(1, 161218260), (2, 80609130), (3, 53739420), (4, 40304565), (5, 32243652), (6, 26869710), (7, 23031180), (9, 17913140), (10, 16121826), (12, 13434855), (14, 11515590), (15, 10747884), (18, 8956570), (20, 8060913), (21, 7677060), (28, 5757795), (30, 5373942), (35, 4606236), (36, 4478285), (42, 3838530), (45, 3582628), (60, 2686971), (63, 2559020), (70, 2303118), (84, 1919265), (90, 1791314), (105, 1535412), (126, 1279510), (140, 1151559), (180, 895657), (210, 767706), (252, 639755), (315, 511804), (420, 383853), (630, 255902), (1260, 127951)]