489292020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1511}}^1$

素因数の和:1790

約数の個数: 144

約数和(自身を含む): 1703939328

約数和(自身を除く): 1214647308

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 257, 315, 420, 514, 630, 771, 1028, 1260, 1285, 1511, 1542, 1799, 2313, 2570, 3022, 3084, 3598, 3855, 4533, 4626, 5140, 5397, 6044, 7196, 7555, 7710, 8995, 9066, 9252, 10577, 10794, 11565, 13599, 15110, 15420, 16191, 17990, 18132, 21154, 21588, 22665, 23130, 26985, 27198, 30220, 31731, 32382, 35980, 42308, 45330, 46260, 52885, 53970, 54396, 63462, 64764, 67995, 80955, 90660, 95193, 105770, 107940, 126924, 135990, 158655, 161910, 190386, 211540, 271980, 317310, 323820, 380772, 388327, 475965, 634620, 776654, 951930, 1164981, 1553308, 1903860, 1941635, 2329962, 2718289, 3494943, 3883270, 4659924, 5436578, 5824905, 6989886, 7766540, 8154867, 10873156, 11649810, 13591445, 13979772, 16309734, 17474715, 23299620, 24464601, 27182890, 32619468, 34949430, 40774335, 48929202, 54365780, 69898860, 81548670, 97858404, 122323005, 163097340, 244646010, 489292020]

約数ペア:

[(1, 489292020), (2, 244646010), (3, 163097340), (4, 122323005), (5, 97858404), (6, 81548670), (7, 69898860), (9, 54365780), (10, 48929202), (12, 40774335), (14, 34949430), (15, 32619468), (18, 27182890), (20, 24464601), (21, 23299620), (28, 17474715), (30, 16309734), (35, 13979772), (36, 13591445), (42, 11649810), (45, 10873156), (60, 8154867), (63, 7766540), (70, 6989886), (84, 5824905), (90, 5436578), (105, 4659924), (126, 3883270), (140, 3494943), (180, 2718289), (210, 2329962), (252, 1941635), (257, 1903860), (315, 1553308), (420, 1164981), (514, 951930), (630, 776654), (771, 634620), (1028, 475965), (1260, 388327), (1285, 380772), (1511, 323820), (1542, 317310), (1799, 271980), (2313, 211540), (2570, 190386), (3022, 161910), (3084, 158655), (3598, 135990), (3855, 126924), (4533, 107940), (4626, 105770), (5140, 95193), (5397, 90660), (6044, 80955), (7196, 67995), (7555, 64764), (7710, 63462), (8995, 54396), (9066, 53970), (9252, 52885), (10577, 46260), (10794, 45330), (11565, 42308), (13599, 35980), (15110, 32382), (15420, 31731), (16191, 30220), (17990, 27198), (18132, 26985), (21154, 23130), (21588, 22665)]