261367920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{541}}^1$

素因数の和:632

約数の個数: 240

約数和(自身を含む): 975053664

約数和(自身を除く): 713685744

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 61, 66, 72, 80, 88, 90, 99, 110, 120, 122, 132, 144, 165, 176, 180, 183, 198, 220, 240, 244, 264, 305, 330, 360, 366, 396, 440, 488, 495, 528, 541, 549, 610, 660, 671, 720, 732, 792, 880, 915, 976, 990, 1082, 1098, 1220, 1320, 1342, 1464, 1584, 1623, 1830, 1980, 2013, 2164, 2196, 2440, 2640, 2684, 2705, 2745, 2928, 3246, 3355, 3660, 3960, 4026, 4328, 4392, 4869, 4880, 5368, 5410, 5490, 5951, 6039, 6492, 6710, 7320, 7920, 8052, 8115, 8656, 8784, 9738, 10065, 10736, 10820, 10980, 11902, 12078, 12984, 13420, 14640, 16104, 16230, 17853, 19476, 20130, 21640, 21960, 23804, 24156, 24345, 25968, 26840, 29755, 30195, 32208, 32460, 33001, 35706, 38952, 40260, 43280, 43920, 47608, 48312, 48690, 53559, 53680, 59510, 60390, 64920, 66002, 71412, 77904, 80520, 89265, 95216, 96624, 97380, 99003, 107118, 119020, 120780, 129840, 132004, 142824, 161040, 165005, 178530, 194760, 198006, 214236, 238040, 241560, 264008, 267795, 285648, 297009, 330010, 357060, 363011, 389520, 396012, 428472, 476080, 483120, 495015, 528016, 535590, 594018, 660020, 714120, 726022, 792024, 856944, 990030, 1071180, 1089033, 1188036, 1320040, 1428240, 1452044, 1485045, 1584048, 1815055, 1980060, 2142360, 2178066, 2376072, 2640080, 2904088, 2970090, 3267099, 3630110, 3960120, 4284720, 4356132, 4752144, 5445165, 5808176, 5940180, 6534198, 7260220, 7920240, 8712264, 10890330, 11880360, 13068396, 14520440, 16335495, 17424528, 21780660, 23760720, 26136792, 29040880, 32670990, 43561320, 52273584, 65341980, 87122640, 130683960, 261367920]

約数ペア:

[(1, 261367920), (2, 130683960), (3, 87122640), (4, 65341980), (5, 52273584), (6, 43561320), (8, 32670990), (9, 29040880), (10, 26136792), (11, 23760720), (12, 21780660), (15, 17424528), (16, 16335495), (18, 14520440), (20, 13068396), (22, 11880360), (24, 10890330), (30, 8712264), (33, 7920240), (36, 7260220), (40, 6534198), (44, 5940180), (45, 5808176), (48, 5445165), (55, 4752144), (60, 4356132), (61, 4284720), (66, 3960120), (72, 3630110), (80, 3267099), (88, 2970090), (90, 2904088), (99, 2640080), (110, 2376072), (120, 2178066), (122, 2142360), (132, 1980060), (144, 1815055), (165, 1584048), (176, 1485045), (180, 1452044), (183, 1428240), (198, 1320040), (220, 1188036), (240, 1089033), (244, 1071180), (264, 990030), (305, 856944), (330, 792024), (360, 726022), (366, 714120), (396, 660020), (440, 594018), (488, 535590), (495, 528016), (528, 495015), (541, 483120), (549, 476080), (610, 428472), (660, 396012), (671, 389520), (720, 363011), (732, 357060), (792, 330010), (880, 297009), (915, 285648), (976, 267795), (990, 264008), (1082, 241560), (1098, 238040), (1220, 214236), (1320, 198006), (1342, 194760), (1464, 178530), (1584, 165005), (1623, 161040), (1830, 142824), (1980, 132004), (2013, 129840), (2164, 120780), (2196, 119020), (2440, 107118), (2640, 99003), (2684, 97380), (2705, 96624), (2745, 95216), (2928, 89265), (3246, 80520), (3355, 77904), (3660, 71412), (3960, 66002), (4026, 64920), (4328, 60390), (4392, 59510), (4869, 53680), (4880, 53559), (5368, 48690), (5410, 48312), (5490, 47608), (5951, 43920), (6039, 43280), (6492, 40260), (6710, 38952), (7320, 35706), (7920, 33001), (8052, 32460), (8115, 32208), (8656, 30195), (8784, 29755), (9738, 26840), (10065, 25968), (10736, 24345), (10820, 24156), (10980, 23804), (11902, 21960), (12078, 21640), (12984, 20130), (13420, 19476), (14640, 17853), (16104, 16230)]