19985478288

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{253417}}^1$

素因数の和:253512

約数の個数: 80

約数和(自身を含む): 54300381696

約数和(自身を除く): 34314903408

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 53, 62, 93, 106, 124, 159, 186, 212, 248, 318, 372, 424, 496, 636, 744, 848, 1272, 1488, 1643, 2544, 3286, 4929, 6572, 9858, 13144, 19716, 26288, 39432, 78864, 253417, 506834, 760251, 1013668, 1520502, 2027336, 3041004, 4054672, 6082008, 7855927, 12164016, 13431101, 15711854, 23567781, 26862202, 31423708, 40293303, 47135562, 53724404, 62847416, 80586606, 94271124, 107448808, 125694832, 161173212, 188542248, 214897616, 322346424, 377084496, 416364131, 644692848, 832728262, 1249092393, 1665456524, 2498184786, 3330913048, 4996369572, 6661826096, 9992739144, 19985478288]

約数ペア:

[(1, 19985478288), (2, 9992739144), (3, 6661826096), (4, 4996369572), (6, 3330913048), (8, 2498184786), (12, 1665456524), (16, 1249092393), (24, 832728262), (31, 644692848), (48, 416364131), (53, 377084496), (62, 322346424), (93, 214897616), (106, 188542248), (124, 161173212), (159, 125694832), (186, 107448808), (212, 94271124), (248, 80586606), (318, 62847416), (372, 53724404), (424, 47135562), (496, 40293303), (636, 31423708), (744, 26862202), (848, 23567781), (1272, 15711854), (1488, 13431101), (1643, 12164016), (2544, 7855927), (3286, 6082008), (4929, 4054672), (6572, 3041004), (9858, 2027336), (13144, 1520502), (19716, 1013668), (26288, 760251), (39432, 506834), (78864, 253417)]