80137820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:723

約数の個数: 96

約数和(自身を含む): 207083520

約数和(自身を除く): 126945700

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 47, 70, 76, 94, 95, 133, 140, 188, 190, 235, 266, 329, 380, 470, 532, 641, 658, 665, 893, 940, 1282, 1316, 1330, 1645, 1786, 2564, 2660, 3205, 3290, 3572, 4465, 4487, 6251, 6410, 6580, 8930, 8974, 12179, 12502, 12820, 17860, 17948, 22435, 24358, 25004, 30127, 31255, 44870, 48716, 60254, 60895, 62510, 85253, 89740, 120508, 121790, 125020, 150635, 170506, 210889, 243580, 301270, 341012, 421778, 426265, 572413, 602540, 843556, 852530, 1054445, 1144826, 1705060, 2108890, 2289652, 2862065, 4006891, 4217780, 5724130, 8013782, 11448260, 16027564, 20034455, 40068910, 80137820]

約数ペア:

[(1, 80137820), (2, 40068910), (4, 20034455), (5, 16027564), (7, 11448260), (10, 8013782), (14, 5724130), (19, 4217780), (20, 4006891), (28, 2862065), (35, 2289652), (38, 2108890), (47, 1705060), (70, 1144826), (76, 1054445), (94, 852530), (95, 843556), (133, 602540), (140, 572413), (188, 426265), (190, 421778), (235, 341012), (266, 301270), (329, 243580), (380, 210889), (470, 170506), (532, 150635), (641, 125020), (658, 121790), (665, 120508), (893, 89740), (940, 85253), (1282, 62510), (1316, 60895), (1330, 60254), (1645, 48716), (1786, 44870), (2564, 31255), (2660, 30127), (3205, 25004), (3290, 24358), (3572, 22435), (4465, 17948), (4487, 17860), (6251, 12820), (6410, 12502), (6580, 12179), (8930, 8974)]