257234880

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{379}}^1$

素因数の和:507

約数の個数: 224

約数和(自身を含む): 945123840

約数和(自身を除く): 687888960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 101, 105, 112, 120, 140, 160, 168, 192, 202, 210, 224, 240, 280, 303, 320, 336, 379, 404, 420, 448, 480, 505, 560, 606, 672, 707, 758, 808, 840, 960, 1010, 1120, 1137, 1212, 1344, 1414, 1515, 1516, 1616, 1680, 1895, 2020, 2121, 2240, 2274, 2424, 2653, 2828, 3030, 3032, 3232, 3360, 3535, 3790, 4040, 4242, 4548, 4848, 5306, 5656, 5685, 6060, 6064, 6464, 6720, 7070, 7580, 7959, 8080, 8484, 9096, 9696, 10605, 10612, 11312, 11370, 12120, 12128, 13265, 14140, 15160, 15918, 16160, 16968, 18192, 19392, 21210, 21224, 22624, 22740, 24240, 24256, 26530, 28280, 30320, 31836, 32320, 33936, 36384, 38279, 39795, 42420, 42448, 45248, 45480, 48480, 53060, 56560, 60640, 63672, 67872, 72768, 76558, 79590, 84840, 84896, 90960, 96960, 106120, 113120, 114837, 121280, 127344, 135744, 153116, 159180, 169680, 169792, 181920, 191395, 212240, 226240, 229674, 254688, 267953, 306232, 318360, 339360, 363840, 382790, 424480, 459348, 509376, 535906, 574185, 612464, 636720, 678720, 765580, 803859, 848960, 918696, 1071812, 1148370, 1224928, 1273440, 1339765, 1531160, 1607718, 1837392, 2143624, 2296740, 2449856, 2546880, 2679530, 3062320, 3215436, 3674784, 4019295, 4287248, 4593480, 5359060, 6124640, 6430872, 7349568, 8038590, 8574496, 9186960, 10718120, 12249280, 12861744, 16077180, 17148992, 18373920, 21436240, 25723488, 32154360, 36747840, 42872480, 51446976, 64308720, 85744960, 128617440, 257234880]

約数ペア:

[(1, 257234880), (2, 128617440), (3, 85744960), (4, 64308720), (5, 51446976), (6, 42872480), (7, 36747840), (8, 32154360), (10, 25723488), (12, 21436240), (14, 18373920), (15, 17148992), (16, 16077180), (20, 12861744), (21, 12249280), (24, 10718120), (28, 9186960), (30, 8574496), (32, 8038590), (35, 7349568), (40, 6430872), (42, 6124640), (48, 5359060), (56, 4593480), (60, 4287248), (64, 4019295), (70, 3674784), (80, 3215436), (84, 3062320), (96, 2679530), (101, 2546880), (105, 2449856), (112, 2296740), (120, 2143624), (140, 1837392), (160, 1607718), (168, 1531160), (192, 1339765), (202, 1273440), (210, 1224928), (224, 1148370), (240, 1071812), (280, 918696), (303, 848960), (320, 803859), (336, 765580), (379, 678720), (404, 636720), (420, 612464), (448, 574185), (480, 535906), (505, 509376), (560, 459348), (606, 424480), (672, 382790), (707, 363840), (758, 339360), (808, 318360), (840, 306232), (960, 267953), (1010, 254688), (1120, 229674), (1137, 226240), (1212, 212240), (1344, 191395), (1414, 181920), (1515, 169792), (1516, 169680), (1616, 159180), (1680, 153116), (1895, 135744), (2020, 127344), (2121, 121280), (2240, 114837), (2274, 113120), (2424, 106120), (2653, 96960), (2828, 90960), (3030, 84896), (3032, 84840), (3232, 79590), (3360, 76558), (3535, 72768), (3790, 67872), (4040, 63672), (4242, 60640), (4548, 56560), (4848, 53060), (5306, 48480), (5656, 45480), (5685, 45248), (6060, 42448), (6064, 42420), (6464, 39795), (6720, 38279), (7070, 36384), (7580, 33936), (7959, 32320), (8080, 31836), (8484, 30320), (9096, 28280), (9696, 26530), (10605, 24256), (10612, 24240), (11312, 22740), (11370, 22624), (12120, 21224), (12128, 21210), (13265, 19392), (14140, 18192), (15160, 16968), (15918, 16160)]