20199590384

素因数分解:

$2^4\times {\mathrm{19}}^3\times {\mathrm{103}}^1\times {\mathrm{1787}}^1$

素因数の和:1955

約数の個数: 80

約数和(自身を含む): 41735066880

約数和(自身を除く): 21535476496

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 103, 152, 206, 304, 361, 412, 722, 824, 1444, 1648, 1787, 1957, 2888, 3574, 3914, 5776, 6859, 7148, 7828, 13718, 14296, 15656, 27436, 28592, 31312, 33953, 37183, 54872, 67906, 74366, 109744, 135812, 148732, 184061, 271624, 297464, 368122, 543248, 594928, 645107, 706477, 736244, 1290214, 1412954, 1472488, 2580428, 2825908, 2944976, 3497159, 5160856, 5651816, 6994318, 10321712, 11303632, 12257033, 13988636, 24514066, 27977272, 49028132, 55954544, 66446021, 98056264, 132892042, 196112528, 265784084, 531568168, 1063136336, 1262474399, 2524948798, 5049897596, 10099795192, 20199590384]

約数ペア:

[(1, 20199590384), (2, 10099795192), (4, 5049897596), (8, 2524948798), (16, 1262474399), (19, 1063136336), (38, 531568168), (76, 265784084), (103, 196112528), (152, 132892042), (206, 98056264), (304, 66446021), (361, 55954544), (412, 49028132), (722, 27977272), (824, 24514066), (1444, 13988636), (1648, 12257033), (1787, 11303632), (1957, 10321712), (2888, 6994318), (3574, 5651816), (3914, 5160856), (5776, 3497159), (6859, 2944976), (7148, 2825908), (7828, 2580428), (13718, 1472488), (14296, 1412954), (15656, 1290214), (27436, 736244), (28592, 706477), (31312, 645107), (33953, 594928), (37183, 543248), (54872, 368122), (67906, 297464), (74366, 271624), (109744, 184061), (135812, 148732)]