201278020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{12919}}^1$

素因数の和:12988

約数の個数: 48

約数和(自身を含む): 455817600

約数和(自身を除く): 254539580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 7790, 12919, 15580, 25838, 51676, 64595, 129190, 245461, 258380, 490922, 529679, 981844, 1059358, 1227305, 2118716, 2454610, 2648395, 4909220, 5296790, 10063901, 10593580, 20127802, 40255604, 50319505, 100639010, 201278020]

約数ペア:

[(1, 201278020), (2, 100639010), (4, 50319505), (5, 40255604), (10, 20127802), (19, 10593580), (20, 10063901), (38, 5296790), (41, 4909220), (76, 2648395), (82, 2454610), (95, 2118716), (164, 1227305), (190, 1059358), (205, 981844), (380, 529679), (410, 490922), (779, 258380), (820, 245461), (1558, 129190), (3116, 64595), (3895, 51676), (7790, 25838), (12919, 15580)]