20004580540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{17449}}^1$

素因数の和:17915

約数の個数: 96

約数和(自身を含む): 50658048000

約数和(自身を除く): 30653467460

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 431, 532, 665, 862, 1330, 1724, 2155, 2660, 3017, 4310, 6034, 8189, 8620, 12068, 15085, 16378, 17449, 30170, 32756, 34898, 40945, 57323, 60340, 69796, 81890, 87245, 114646, 122143, 163780, 174490, 229292, 244286, 286615, 331531, 348980, 488572, 573230, 610715, 663062, 1146460, 1221430, 1326124, 1657655, 2320717, 2442860, 3315310, 4641434, 6630620, 7520519, 9282868, 11603585, 15041038, 23207170, 30082076, 37602595, 46414340, 52643633, 75205190, 105287266, 142889861, 150410380, 210574532, 263218165, 285779722, 526436330, 571559444, 714449305, 1000229027, 1052872660, 1428898610, 2000458054, 2857797220, 4000916108, 5001145135, 10002290270, 20004580540]

約数ペア:

[(1, 20004580540), (2, 10002290270), (4, 5001145135), (5, 4000916108), (7, 2857797220), (10, 2000458054), (14, 1428898610), (19, 1052872660), (20, 1000229027), (28, 714449305), (35, 571559444), (38, 526436330), (70, 285779722), (76, 263218165), (95, 210574532), (133, 150410380), (140, 142889861), (190, 105287266), (266, 75205190), (380, 52643633), (431, 46414340), (532, 37602595), (665, 30082076), (862, 23207170), (1330, 15041038), (1724, 11603585), (2155, 9282868), (2660, 7520519), (3017, 6630620), (4310, 4641434), (6034, 3315310), (8189, 2442860), (8620, 2320717), (12068, 1657655), (15085, 1326124), (16378, 1221430), (17449, 1146460), (30170, 663062), (32756, 610715), (34898, 573230), (40945, 488572), (57323, 348980), (60340, 331531), (69796, 286615), (81890, 244286), (87245, 229292), (114646, 174490), (122143, 163780)]