251531520

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2113}}^1$

素因数の和:2168

約数の個数: 144

約数和(自身を含む): 829635072

約数和(自身を除く): 578103552

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 256, 310, 320, 372, 384, 465, 480, 496, 620, 640, 744, 768, 930, 960, 992, 1240, 1280, 1488, 1860, 1920, 1984, 2113, 2480, 2976, 3720, 3840, 3968, 4226, 4960, 5952, 6339, 7440, 7936, 8452, 9920, 10565, 11904, 12678, 14880, 16904, 19840, 21130, 23808, 25356, 29760, 31695, 33808, 39680, 42260, 50712, 59520, 63390, 65503, 67616, 84520, 101424, 119040, 126780, 131006, 135232, 169040, 196509, 202848, 253560, 262012, 270464, 327515, 338080, 393018, 405696, 507120, 524024, 540928, 655030, 676160, 786036, 811392, 982545, 1014240, 1048048, 1310060, 1352320, 1572072, 1622784, 1965090, 2028480, 2096096, 2620120, 2704640, 3144144, 3930180, 4056960, 4192192, 5240240, 6288288, 7860360, 8113920, 8384384, 10480480, 12576576, 15720720, 16768768, 20960960, 25153152, 31441440, 41921920, 50306304, 62882880, 83843840, 125765760, 251531520]

約数ペア:

[(1, 251531520), (2, 125765760), (3, 83843840), (4, 62882880), (5, 50306304), (6, 41921920), (8, 31441440), (10, 25153152), (12, 20960960), (15, 16768768), (16, 15720720), (20, 12576576), (24, 10480480), (30, 8384384), (31, 8113920), (32, 7860360), (40, 6288288), (48, 5240240), (60, 4192192), (62, 4056960), (64, 3930180), (80, 3144144), (93, 2704640), (96, 2620120), (120, 2096096), (124, 2028480), (128, 1965090), (155, 1622784), (160, 1572072), (186, 1352320), (192, 1310060), (240, 1048048), (248, 1014240), (256, 982545), (310, 811392), (320, 786036), (372, 676160), (384, 655030), (465, 540928), (480, 524024), (496, 507120), (620, 405696), (640, 393018), (744, 338080), (768, 327515), (930, 270464), (960, 262012), (992, 253560), (1240, 202848), (1280, 196509), (1488, 169040), (1860, 135232), (1920, 131006), (1984, 126780), (2113, 119040), (2480, 101424), (2976, 84520), (3720, 67616), (3840, 65503), (3968, 63390), (4226, 59520), (4960, 50712), (5952, 42260), (6339, 39680), (7440, 33808), (7936, 31695), (8452, 29760), (9920, 25356), (10565, 23808), (11904, 21130), (12678, 19840), (14880, 16904)]