1557982020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1\times {\mathrm{307}}^1$

素因数の和:650

約数の個数: 192

約数和(自身を含む): 5136316416

約数和(自身を除く): 3578334396

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 60, 70, 84, 86, 105, 129, 140, 172, 210, 215, 258, 281, 301, 307, 420, 430, 516, 562, 602, 614, 645, 843, 860, 903, 921, 1124, 1204, 1228, 1290, 1405, 1505, 1535, 1686, 1806, 1842, 1967, 2149, 2580, 2810, 3010, 3070, 3372, 3612, 3684, 3934, 4215, 4298, 4515, 4605, 5620, 5901, 6020, 6140, 6447, 7868, 8430, 8596, 9030, 9210, 9835, 10745, 11802, 12083, 12894, 13201, 16860, 18060, 18420, 19670, 21490, 23604, 24166, 25788, 26402, 29505, 32235, 36249, 39340, 39603, 42980, 48332, 52804, 59010, 60415, 64470, 66005, 72498, 79206, 84581, 86267, 92407, 118020, 120830, 128940, 132010, 144996, 158412, 169162, 172534, 181245, 184814, 198015, 241660, 253743, 258801, 264020, 277221, 338324, 345068, 362490, 369628, 396030, 422905, 431335, 462035, 507486, 517602, 554442, 603869, 724980, 792060, 845810, 862670, 924070, 1014972, 1035204, 1108884, 1207738, 1268715, 1294005, 1386105, 1691620, 1725340, 1811607, 1848140, 2415476, 2537430, 2588010, 2772210, 3019345, 3623214, 3709481, 5074860, 5176020, 5544420, 6038690, 7246428, 7418962, 9058035, 11128443, 12077380, 14837924, 18116070, 18547405, 22256886, 25966367, 36232140, 37094810, 44513772, 51932734, 55642215, 74189620, 77899101, 103865468, 111284430, 129831835, 155798202, 222568860, 259663670, 311596404, 389495505, 519327340, 778991010, 1557982020]

約数ペア:

[(1, 1557982020), (2, 778991010), (3, 519327340), (4, 389495505), (5, 311596404), (6, 259663670), (7, 222568860), (10, 155798202), (12, 129831835), (14, 111284430), (15, 103865468), (20, 77899101), (21, 74189620), (28, 55642215), (30, 51932734), (35, 44513772), (42, 37094810), (43, 36232140), (60, 25966367), (70, 22256886), (84, 18547405), (86, 18116070), (105, 14837924), (129, 12077380), (140, 11128443), (172, 9058035), (210, 7418962), (215, 7246428), (258, 6038690), (281, 5544420), (301, 5176020), (307, 5074860), (420, 3709481), (430, 3623214), (516, 3019345), (562, 2772210), (602, 2588010), (614, 2537430), (645, 2415476), (843, 1848140), (860, 1811607), (903, 1725340), (921, 1691620), (1124, 1386105), (1204, 1294005), (1228, 1268715), (1290, 1207738), (1405, 1108884), (1505, 1035204), (1535, 1014972), (1686, 924070), (1806, 862670), (1842, 845810), (1967, 792060), (2149, 724980), (2580, 603869), (2810, 554442), (3010, 517602), (3070, 507486), (3372, 462035), (3612, 431335), (3684, 422905), (3934, 396030), (4215, 369628), (4298, 362490), (4515, 345068), (4605, 338324), (5620, 277221), (5901, 264020), (6020, 258801), (6140, 253743), (6447, 241660), (7868, 198015), (8430, 184814), (8596, 181245), (9030, 172534), (9210, 169162), (9835, 158412), (10745, 144996), (11802, 132010), (12083, 128940), (12894, 120830), (13201, 118020), (16860, 92407), (18060, 86267), (18420, 84581), (19670, 79206), (21490, 72498), (23604, 66005), (24166, 64470), (25788, 60415), (26402, 59010), (29505, 52804), (32235, 48332), (36249, 42980), (39340, 39603)]