256293120

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2153}}^1$

素因数の和:2208

約数の個数: 144

約数和(自身を含む): 845332992

約数和(自身を除く): 589039872

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, 2153, 2480, 2976, 3720, 3840, 3968, 4306, 4960, 5952, 6459, 7440, 7936, 8612, 9920, 10765, 11904, 12918, 14880, 17224, 19840, 21530, 23808, 25836, 29760, 32295, 34448, 39680, 43060, 51672, 59520, 64590, 66743, 68896, 86120, 103344, 119040, 129180, 133486, 137792, 172240, 200229, 206688, 258360, 266972, 275584, 333715, 344480, 400458, 413376, 516720, 533944, 551168, 667430, 688960, 800916, 826752, 1001145, 1033440, 1067888, 1334860, 1377920, 1601832, 1653504, 2002290, 2066880, 2135776, 2669720, 2755840, 3203664, 4004580, 4133760, 4271552, 5339440, 6407328, 8009160, 8267520, 8543104, 10678880, 12814656, 16018320, 17086208, 21357760, 25629312, 32036640, 42715520, 51258624, 64073280, 85431040, 128146560, 256293120]

約数ペア:

[(1, 256293120), (2, 128146560), (3, 85431040), (4, 64073280), (5, 51258624), (6, 42715520), (8, 32036640), (10, 25629312), (12, 21357760), (15, 17086208), (16, 16018320), (20, 12814656), (24, 10678880), (30, 8543104), (31, 8267520), (32, 8009160), (40, 6407328), (48, 5339440), (60, 4271552), (62, 4133760), (64, 4004580), (80, 3203664), (93, 2755840), (96, 2669720), (120, 2135776), (124, 2066880), (128, 2002290), (155, 1653504), (160, 1601832), (186, 1377920), (192, 1334860), (240, 1067888), (248, 1033440), (256, 1001145), (310, 826752), (320, 800916), (372, 688960), (384, 667430), (465, 551168), (480, 533944), (496, 516720), (620, 413376), (640, 400458), (744, 344480), (768, 333715), (930, 275584), (960, 266972), (992, 258360), (1240, 206688), (1280, 200229), (1488, 172240), (1860, 137792), (1920, 133486), (1984, 129180), (2153, 119040), (2480, 103344), (2976, 86120), (3720, 68896), (3840, 66743), (3968, 64590), (4306, 59520), (4960, 51672), (5952, 43060), (6459, 39680), (7440, 34448), (7936, 32295), (8612, 29760), (9920, 25836), (10765, 23808), (11904, 21530), (12918, 19840), (14880, 17224)]