128219980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 337962240

約数和(自身を除く): 209742260

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 43, 59, 70, 76, 86, 95, 118, 133, 140, 172, 190, 215, 236, 266, 295, 301, 361, 380, 413, 430, 532, 590, 602, 665, 722, 817, 826, 860, 1121, 1180, 1204, 1330, 1444, 1505, 1634, 1652, 1805, 2065, 2242, 2527, 2537, 2660, 3010, 3268, 3610, 4085, 4130, 4484, 5054, 5074, 5605, 5719, 6020, 7220, 7847, 8170, 8260, 10108, 10148, 11210, 11438, 12635, 12685, 15523, 15694, 16340, 17759, 21299, 22420, 22876, 25270, 25370, 28595, 31046, 31388, 35518, 39235, 42598, 48203, 50540, 50740, 57190, 62092, 71036, 77615, 78470, 85196, 88795, 96406, 106495, 108661, 114380, 149093, 155230, 156940, 177590, 192812, 212990, 217322, 241015, 298186, 310460, 337421, 355180, 425980, 434644, 482030, 543305, 596372, 674842, 745465, 915857, 964060, 1086610, 1349684, 1490930, 1687105, 1831714, 2173220, 2981860, 3374210, 3663428, 4579285, 6410999, 6748420, 9158570, 12821998, 18317140, 25643996, 32054995, 64109990, 128219980]

約数ペア:

[(1, 128219980), (2, 64109990), (4, 32054995), (5, 25643996), (7, 18317140), (10, 12821998), (14, 9158570), (19, 6748420), (20, 6410999), (28, 4579285), (35, 3663428), (38, 3374210), (43, 2981860), (59, 2173220), (70, 1831714), (76, 1687105), (86, 1490930), (95, 1349684), (118, 1086610), (133, 964060), (140, 915857), (172, 745465), (190, 674842), (215, 596372), (236, 543305), (266, 482030), (295, 434644), (301, 425980), (361, 355180), (380, 337421), (413, 310460), (430, 298186), (532, 241015), (590, 217322), (602, 212990), (665, 192812), (722, 177590), (817, 156940), (826, 155230), (860, 149093), (1121, 114380), (1180, 108661), (1204, 106495), (1330, 96406), (1444, 88795), (1505, 85196), (1634, 78470), (1652, 77615), (1805, 71036), (2065, 62092), (2242, 57190), (2527, 50740), (2537, 50540), (2660, 48203), (3010, 42598), (3268, 39235), (3610, 35518), (4085, 31388), (4130, 31046), (4484, 28595), (5054, 25370), (5074, 25270), (5605, 22876), (5719, 22420), (6020, 21299), (7220, 17759), (7847, 16340), (8170, 15694), (8260, 15523), (10108, 12685), (10148, 12635), (11210, 11438)]