290472980

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:323

約数の個数: 120

約数和(自身を含む): 745379712

約数和(自身を除く): 454906732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 263, 322, 343, 460, 490, 526, 644, 686, 805, 980, 1052, 1127, 1315, 1372, 1610, 1715, 1841, 2254, 2401, 2630, 3220, 3430, 3682, 4508, 4802, 5260, 5635, 6049, 6860, 7364, 7889, 9205, 9604, 11270, 12005, 12098, 12887, 15778, 18410, 22540, 24010, 24196, 25774, 30245, 31556, 36820, 39445, 42343, 48020, 51548, 55223, 60490, 64435, 78890, 84686, 90209, 110446, 120980, 128870, 157780, 169372, 180418, 211715, 220892, 257740, 276115, 296401, 360836, 423430, 451045, 552230, 592802, 631463, 846860, 902090, 1104460, 1185604, 1262926, 1482005, 1804180, 2074807, 2525852, 2964010, 3157315, 4149614, 5928020, 6314630, 8299228, 10374035, 12629260, 14523649, 20748070, 29047298, 41496140, 58094596, 72618245, 145236490, 290472980]

約数ペア:

[(1, 290472980), (2, 145236490), (4, 72618245), (5, 58094596), (7, 41496140), (10, 29047298), (14, 20748070), (20, 14523649), (23, 12629260), (28, 10374035), (35, 8299228), (46, 6314630), (49, 5928020), (70, 4149614), (92, 3157315), (98, 2964010), (115, 2525852), (140, 2074807), (161, 1804180), (196, 1482005), (230, 1262926), (245, 1185604), (263, 1104460), (322, 902090), (343, 846860), (460, 631463), (490, 592802), (526, 552230), (644, 451045), (686, 423430), (805, 360836), (980, 296401), (1052, 276115), (1127, 257740), (1315, 220892), (1372, 211715), (1610, 180418), (1715, 169372), (1841, 157780), (2254, 128870), (2401, 120980), (2630, 110446), (3220, 90209), (3430, 84686), (3682, 78890), (4508, 64435), (4802, 60490), (5260, 55223), (5635, 51548), (6049, 48020), (6860, 42343), (7364, 39445), (7889, 36820), (9205, 31556), (9604, 30245), (11270, 25774), (12005, 24196), (12098, 24010), (12887, 22540), (15778, 18410)]