261564720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{64109}}^1$

素因数の和:64142

約数の個数: 80

約数和(自身を含む): 858561120

約数和(自身を除く): 596996400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 64109, 128218, 192327, 256436, 320545, 384654, 512872, 641090, 769308, 961635, 1025744, 1089853, 1282180, 1538616, 1923270, 2179706, 2564360, 3077232, 3269559, 3846540, 4359412, 5128720, 5449265, 6539118, 7693080, 8718824, 10898530, 13078236, 15386160, 16347795, 17437648, 21797060, 26156472, 32695590, 43594120, 52312944, 65391180, 87188240, 130782360, 261564720]

約数ペア:

[(1, 261564720), (2, 130782360), (3, 87188240), (4, 65391180), (5, 52312944), (6, 43594120), (8, 32695590), (10, 26156472), (12, 21797060), (15, 17437648), (16, 16347795), (17, 15386160), (20, 13078236), (24, 10898530), (30, 8718824), (34, 7693080), (40, 6539118), (48, 5449265), (51, 5128720), (60, 4359412), (68, 3846540), (80, 3269559), (85, 3077232), (102, 2564360), (120, 2179706), (136, 1923270), (170, 1538616), (204, 1282180), (240, 1089853), (255, 1025744), (272, 961635), (340, 769308), (408, 641090), (510, 512872), (680, 384654), (816, 320545), (1020, 256436), (1360, 192327), (2040, 128218), (4080, 64109)]