129891720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{647}}^1$

素因数の和:907

約数の個数: 128

約数和(自身を含む): 447897600

約数和(自身を除く): 318005880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 239, 280, 420, 478, 647, 717, 840, 956, 1195, 1294, 1434, 1673, 1912, 1941, 2390, 2588, 2868, 3235, 3346, 3585, 3882, 4529, 4780, 5019, 5176, 5736, 6470, 6692, 7170, 7764, 8365, 9058, 9560, 9705, 10038, 12940, 13384, 13587, 14340, 15528, 16730, 18116, 19410, 20076, 22645, 25095, 25880, 27174, 28680, 33460, 36232, 38820, 40152, 45290, 50190, 54348, 66920, 67935, 77640, 90580, 100380, 108696, 135870, 154633, 181160, 200760, 271740, 309266, 463899, 543480, 618532, 773165, 927798, 1082431, 1237064, 1546330, 1855596, 2164862, 2319495, 3092660, 3247293, 3711192, 4329724, 4638990, 5412155, 6185320, 6494586, 8659448, 9277980, 10824310, 12989172, 16236465, 18555960, 21648620, 25978344, 32472930, 43297240, 64945860, 129891720]

約数ペア:

[(1, 129891720), (2, 64945860), (3, 43297240), (4, 32472930), (5, 25978344), (6, 21648620), (7, 18555960), (8, 16236465), (10, 12989172), (12, 10824310), (14, 9277980), (15, 8659448), (20, 6494586), (21, 6185320), (24, 5412155), (28, 4638990), (30, 4329724), (35, 3711192), (40, 3247293), (42, 3092660), (56, 2319495), (60, 2164862), (70, 1855596), (84, 1546330), (105, 1237064), (120, 1082431), (140, 927798), (168, 773165), (210, 618532), (239, 543480), (280, 463899), (420, 309266), (478, 271740), (647, 200760), (717, 181160), (840, 154633), (956, 135870), (1195, 108696), (1294, 100380), (1434, 90580), (1673, 77640), (1912, 67935), (1941, 66920), (2390, 54348), (2588, 50190), (2868, 45290), (3235, 40152), (3346, 38820), (3585, 36232), (3882, 33460), (4529, 28680), (4780, 27174), (5019, 25880), (5176, 25095), (5736, 22645), (6470, 20076), (6692, 19410), (7170, 18116), (7764, 16730), (8365, 15528), (9058, 14340), (9560, 13587), (9705, 13384), (10038, 12940)]