257948640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{661}}^1$

素因数の和:953

約数の個数: 144

約数和(自身を含む): 884834496

約数和(自身を除く): 626885856

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 271, 288, 360, 480, 542, 661, 720, 813, 1084, 1322, 1355, 1440, 1626, 1983, 2168, 2439, 2644, 2710, 3252, 3305, 3966, 4065, 4336, 4878, 5288, 5420, 5949, 6504, 6610, 7932, 8130, 8672, 9756, 9915, 10576, 10840, 11898, 12195, 13008, 13220, 15864, 16260, 19512, 19830, 21152, 21680, 23796, 24390, 26016, 26440, 29745, 31728, 32520, 39024, 39660, 43360, 47592, 48780, 52880, 59490, 63456, 65040, 78048, 79320, 95184, 97560, 105760, 118980, 130080, 158640, 179131, 190368, 195120, 237960, 317280, 358262, 390240, 475920, 537393, 716524, 895655, 951840, 1074786, 1433048, 1612179, 1791310, 2149572, 2686965, 2866096, 3224358, 3582620, 4299144, 5373930, 5732192, 6448716, 7165240, 8060895, 8598288, 10747860, 12897432, 14330480, 16121790, 17196576, 21495720, 25794864, 28660960, 32243580, 42991440, 51589728, 64487160, 85982880, 128974320, 257948640]

約数ペア:

[(1, 257948640), (2, 128974320), (3, 85982880), (4, 64487160), (5, 51589728), (6, 42991440), (8, 32243580), (9, 28660960), (10, 25794864), (12, 21495720), (15, 17196576), (16, 16121790), (18, 14330480), (20, 12897432), (24, 10747860), (30, 8598288), (32, 8060895), (36, 7165240), (40, 6448716), (45, 5732192), (48, 5373930), (60, 4299144), (72, 3582620), (80, 3224358), (90, 2866096), (96, 2686965), (120, 2149572), (144, 1791310), (160, 1612179), (180, 1433048), (240, 1074786), (271, 951840), (288, 895655), (360, 716524), (480, 537393), (542, 475920), (661, 390240), (720, 358262), (813, 317280), (1084, 237960), (1322, 195120), (1355, 190368), (1440, 179131), (1626, 158640), (1983, 130080), (2168, 118980), (2439, 105760), (2644, 97560), (2710, 95184), (3252, 79320), (3305, 78048), (3966, 65040), (4065, 63456), (4336, 59490), (4878, 52880), (5288, 48780), (5420, 47592), (5949, 43360), (6504, 39660), (6610, 39024), (7932, 32520), (8130, 31728), (8672, 29745), (9756, 26440), (9915, 26016), (10576, 24390), (10840, 23796), (11898, 21680), (12195, 21152), (13008, 19830), (13220, 19512), (15864, 16260)]