19908240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7541}}^1$

素因数の和:7568

約数の個数: 80

約数和(自身を含む): 67334976

約数和(自身を除く): 47426736

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 7541, 15082, 22623, 30164, 37705, 45246, 60328, 75410, 82951, 90492, 113115, 120656, 150820, 165902, 180984, 226230, 248853, 301640, 331804, 361968, 414755, 452460, 497706, 603280, 663608, 829510, 904920, 995412, 1244265, 1327216, 1659020, 1809840, 1990824, 2488530, 3318040, 3981648, 4977060, 6636080, 9954120, 19908240]

約数ペア:

[(1, 19908240), (2, 9954120), (3, 6636080), (4, 4977060), (5, 3981648), (6, 3318040), (8, 2488530), (10, 1990824), (11, 1809840), (12, 1659020), (15, 1327216), (16, 1244265), (20, 995412), (22, 904920), (24, 829510), (30, 663608), (33, 603280), (40, 497706), (44, 452460), (48, 414755), (55, 361968), (60, 331804), (66, 301640), (80, 248853), (88, 226230), (110, 180984), (120, 165902), (132, 150820), (165, 120656), (176, 113115), (220, 90492), (240, 82951), (264, 75410), (330, 60328), (440, 45246), (528, 37705), (660, 30164), (880, 22623), (1320, 15082), (2640, 7541)]