19306490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{41}}^1$

素因数の和:124

約数の個数: 72

約数和(自身を含む): 42790356

約数和(自身を除く): 23483866

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 41, 49, 62, 70, 82, 98, 155, 205, 217, 245, 287, 310, 410, 434, 490, 574, 961, 1085, 1271, 1435, 1519, 1922, 2009, 2170, 2542, 2870, 3038, 4018, 4805, 6355, 6727, 7595, 8897, 9610, 10045, 12710, 13454, 15190, 17794, 20090, 33635, 39401, 44485, 47089, 62279, 67270, 78802, 88970, 94178, 124558, 197005, 235445, 275807, 311395, 394010, 470890, 551614, 622790, 1379035, 1930649, 2758070, 3861298, 9653245, 19306490]

約数ペア:

[(1, 19306490), (2, 9653245), (5, 3861298), (7, 2758070), (10, 1930649), (14, 1379035), (31, 622790), (35, 551614), (41, 470890), (49, 394010), (62, 311395), (70, 275807), (82, 235445), (98, 197005), (155, 124558), (205, 94178), (217, 88970), (245, 78802), (287, 67270), (310, 62279), (410, 47089), (434, 44485), (490, 39401), (574, 33635), (961, 20090), (1085, 17794), (1271, 15190), (1435, 13454), (1519, 12710), (1922, 10045), (2009, 9610), (2170, 8897), (2542, 7595), (2870, 6727), (3038, 6355), (4018, 4805)]