20128357620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{371509}}^1$

素因数の和:371574

約数の個数: 144

約数和(自身を含む): 71401249920

約数和(自身を除く): 51272892300

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 43, 45, 60, 63, 70, 84, 86, 90, 105, 126, 129, 140, 172, 180, 210, 215, 252, 258, 301, 315, 387, 420, 430, 516, 602, 630, 645, 774, 860, 903, 1204, 1260, 1290, 1505, 1548, 1806, 1935, 2580, 2709, 3010, 3612, 3870, 4515, 5418, 6020, 7740, 9030, 10836, 13545, 18060, 27090, 54180, 371509, 743018, 1114527, 1486036, 1857545, 2229054, 2600563, 3343581, 3715090, 4458108, 5201126, 5572635, 6687162, 7430180, 7801689, 10402252, 11145270, 13002815, 13374324, 15603378, 15974887, 16717905, 22290540, 23405067, 26005630, 31206756, 31949774, 33435810, 39008445, 46810134, 47924661, 52011260, 63899548, 66871620, 78016890, 79874435, 93620268, 95849322, 111824209, 117025335, 143773983, 156033780, 159748870, 191698644, 223648418, 234050670, 239623305, 287547966, 319497740, 335472627, 447296836, 468101340, 479246610, 559121045, 575095932, 670945254, 718869915, 958493220, 1006417881, 1118242090, 1341890508, 1437739830, 1677363135, 2012835762, 2236484180, 2875479660, 3354726270, 4025671524, 5032089405, 6709452540, 10064178810, 20128357620]

約数ペア:

[(1, 20128357620), (2, 10064178810), (3, 6709452540), (4, 5032089405), (5, 4025671524), (6, 3354726270), (7, 2875479660), (9, 2236484180), (10, 2012835762), (12, 1677363135), (14, 1437739830), (15, 1341890508), (18, 1118242090), (20, 1006417881), (21, 958493220), (28, 718869915), (30, 670945254), (35, 575095932), (36, 559121045), (42, 479246610), (43, 468101340), (45, 447296836), (60, 335472627), (63, 319497740), (70, 287547966), (84, 239623305), (86, 234050670), (90, 223648418), (105, 191698644), (126, 159748870), (129, 156033780), (140, 143773983), (172, 117025335), (180, 111824209), (210, 95849322), (215, 93620268), (252, 79874435), (258, 78016890), (301, 66871620), (315, 63899548), (387, 52011260), (420, 47924661), (430, 46810134), (516, 39008445), (602, 33435810), (630, 31949774), (645, 31206756), (774, 26005630), (860, 23405067), (903, 22290540), (1204, 16717905), (1260, 15974887), (1290, 15603378), (1505, 13374324), (1548, 13002815), (1806, 11145270), (1935, 10402252), (2580, 7801689), (2709, 7430180), (3010, 6687162), (3612, 5572635), (3870, 5201126), (4515, 4458108), (5418, 3715090), (6020, 3343581), (7740, 2600563), (9030, 2229054), (10836, 1857545), (13545, 1486036), (18060, 1114527), (27090, 743018), (54180, 371509)]