261077760

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:331

約数の個数: 216

約数和(自身を含む): 915458544

約数和(自身を除く): 654380784

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, 64, 72, 80, 90, 96, 120, 128, 131, 144, 160, 173, 180, 192, 240, 256, 262, 288, 320, 346, 360, 384, 393, 480, 519, 524, 576, 640, 655, 692, 720, 768, 786, 865, 960, 1038, 1048, 1152, 1179, 1280, 1310, 1384, 1440, 1557, 1572, 1730, 1920, 1965, 2076, 2096, 2304, 2358, 2595, 2620, 2768, 2880, 3114, 3144, 3460, 3840, 3930, 4152, 4192, 4716, 5190, 5240, 5536, 5760, 5895, 6228, 6288, 6920, 7785, 7860, 8304, 8384, 9432, 10380, 10480, 11072, 11520, 11790, 12456, 12576, 13840, 15570, 15720, 16608, 16768, 18864, 20760, 20960, 22144, 22663, 23580, 24912, 25152, 27680, 31140, 31440, 33216, 33536, 37728, 41520, 41920, 44288, 45326, 47160, 49824, 50304, 55360, 62280, 62880, 66432, 67989, 75456, 83040, 83840, 90652, 94320, 99648, 100608, 110720, 113315, 124560, 125760, 132864, 135978, 150912, 166080, 167680, 181304, 188640, 199296, 203967, 221440, 226630, 249120, 251520, 271956, 301824, 332160, 339945, 362608, 377280, 398592, 407934, 453260, 498240, 503040, 543912, 664320, 679890, 725216, 754560, 815868, 906520, 996480, 1019835, 1087824, 1359780, 1450432, 1509120, 1631736, 1813040, 1992960, 2039670, 2175648, 2719560, 2900864, 3263472, 3626080, 4079340, 4351296, 5439120, 5801728, 6526944, 7252160, 8158680, 8702592, 10878240, 13053888, 14504320, 16317360, 17405184, 21756480, 26107776, 29008640, 32634720, 43512960, 52215552, 65269440, 87025920, 130538880, 261077760]

約数ペア:

[(1, 261077760), (2, 130538880), (3, 87025920), (4, 65269440), (5, 52215552), (6, 43512960), (8, 32634720), (9, 29008640), (10, 26107776), (12, 21756480), (15, 17405184), (16, 16317360), (18, 14504320), (20, 13053888), (24, 10878240), (30, 8702592), (32, 8158680), (36, 7252160), (40, 6526944), (45, 5801728), (48, 5439120), (60, 4351296), (64, 4079340), (72, 3626080), (80, 3263472), (90, 2900864), (96, 2719560), (120, 2175648), (128, 2039670), (131, 1992960), (144, 1813040), (160, 1631736), (173, 1509120), (180, 1450432), (192, 1359780), (240, 1087824), (256, 1019835), (262, 996480), (288, 906520), (320, 815868), (346, 754560), (360, 725216), (384, 679890), (393, 664320), (480, 543912), (519, 503040), (524, 498240), (576, 453260), (640, 407934), (655, 398592), (692, 377280), (720, 362608), (768, 339945), (786, 332160), (865, 301824), (960, 271956), (1038, 251520), (1048, 249120), (1152, 226630), (1179, 221440), (1280, 203967), (1310, 199296), (1384, 188640), (1440, 181304), (1557, 167680), (1572, 166080), (1730, 150912), (1920, 135978), (1965, 132864), (2076, 125760), (2096, 124560), (2304, 113315), (2358, 110720), (2595, 100608), (2620, 99648), (2768, 94320), (2880, 90652), (3114, 83840), (3144, 83040), (3460, 75456), (3840, 67989), (3930, 66432), (4152, 62880), (4192, 62280), (4716, 55360), (5190, 50304), (5240, 49824), (5536, 47160), (5760, 45326), (5895, 44288), (6228, 41920), (6288, 41520), (6920, 37728), (7785, 33536), (7860, 33216), (8304, 31440), (8384, 31140), (9432, 27680), (10380, 25152), (10480, 24912), (11072, 23580), (11520, 22663), (11790, 22144), (12456, 20960), (12576, 20760), (13840, 18864), (15570, 16768), (15720, 16608)]