19116760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{379}}^1$

素因数の和:500

約数の個数: 64

約数和(自身を含む): 46922400

約数和(自身を除く): 27805640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 97, 104, 130, 194, 260, 379, 388, 485, 520, 758, 776, 970, 1261, 1516, 1895, 1940, 2522, 3032, 3790, 3880, 4927, 5044, 6305, 7580, 9854, 10088, 12610, 15160, 19708, 24635, 25220, 36763, 39416, 49270, 50440, 73526, 98540, 147052, 183815, 197080, 294104, 367630, 477919, 735260, 955838, 1470520, 1911676, 2389595, 3823352, 4779190, 9558380, 19116760]

約数ペア:

[(1, 19116760), (2, 9558380), (4, 4779190), (5, 3823352), (8, 2389595), (10, 1911676), (13, 1470520), (20, 955838), (26, 735260), (40, 477919), (52, 367630), (65, 294104), (97, 197080), (104, 183815), (130, 147052), (194, 98540), (260, 73526), (379, 50440), (388, 49270), (485, 39416), (520, 36763), (758, 25220), (776, 24635), (970, 19708), (1261, 15160), (1516, 12610), (1895, 10088), (1940, 9854), (2522, 7580), (3032, 6305), (3790, 5044), (3880, 4927)]