12840240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{7643}}^1$

素因数の和:7666

約数の個数: 80

約数和(自身を含む): 45497088

約数和(自身を除く): 32656848

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 7643, 15286, 22929, 30572, 38215, 45858, 53501, 61144, 76430, 91716, 107002, 114645, 122288, 152860, 160503, 183432, 214004, 229290, 267505, 305720, 321006, 366864, 428008, 458580, 535010, 611440, 642012, 802515, 856016, 917160, 1070020, 1284024, 1605030, 1834320, 2140040, 2568048, 3210060, 4280080, 6420120, 12840240]

約数ペア:

[(1, 12840240), (2, 6420120), (3, 4280080), (4, 3210060), (5, 2568048), (6, 2140040), (7, 1834320), (8, 1605030), (10, 1284024), (12, 1070020), (14, 917160), (15, 856016), (16, 802515), (20, 642012), (21, 611440), (24, 535010), (28, 458580), (30, 428008), (35, 366864), (40, 321006), (42, 305720), (48, 267505), (56, 229290), (60, 214004), (70, 183432), (80, 160503), (84, 152860), (105, 122288), (112, 114645), (120, 107002), (140, 91716), (168, 76430), (210, 61144), (240, 53501), (280, 45858), (336, 38215), (420, 30572), (560, 22929), (840, 15286), (1680, 7643)]