31784720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1901}}^1$

素因数の和:1944

約数の個数: 80

約数和(自身を含む): 84905280

約数和(自身を除く): 53120560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1520, 1672, 1901, 2090, 3344, 3802, 4180, 7604, 8360, 9505, 15208, 16720, 19010, 20911, 30416, 36119, 38020, 41822, 72238, 76040, 83644, 104555, 144476, 152080, 167288, 180595, 209110, 288952, 334576, 361190, 397309, 418220, 577904, 722380, 794618, 836440, 1444760, 1589236, 1672880, 1986545, 2889520, 3178472, 3973090, 6356944, 7946180, 15892360, 31784720]

約数ペア:

[(1, 31784720), (2, 15892360), (4, 7946180), (5, 6356944), (8, 3973090), (10, 3178472), (11, 2889520), (16, 1986545), (19, 1672880), (20, 1589236), (22, 1444760), (38, 836440), (40, 794618), (44, 722380), (55, 577904), (76, 418220), (80, 397309), (88, 361190), (95, 334576), (110, 288952), (152, 209110), (176, 180595), (190, 167288), (209, 152080), (220, 144476), (304, 104555), (380, 83644), (418, 76040), (440, 72238), (760, 41822), (836, 38020), (880, 36119), (1045, 30416), (1520, 20911), (1672, 19010), (1901, 16720), (2090, 15208), (3344, 9505), (3802, 8360), (4180, 7604)]