19636880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12919}}^1$

素因数の和:12951

約数の個数: 40

約数和(自身を含む): 48062400

約数和(自身を除く): 28425520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12919, 25838, 51676, 64595, 103352, 129190, 206704, 245461, 258380, 490922, 516760, 981844, 1033520, 1227305, 1963688, 2454610, 3927376, 4909220, 9818440, 19636880]

約数ペア:

[(1, 19636880), (2, 9818440), (4, 4909220), (5, 3927376), (8, 2454610), (10, 1963688), (16, 1227305), (19, 1033520), (20, 981844), (38, 516760), (40, 490922), (76, 258380), (80, 245461), (95, 206704), (152, 129190), (190, 103352), (304, 64595), (380, 51676), (760, 25838), (1520, 12919)]