405181440

素因数分解:

$2^{10}\times 3^4\times 5^1\times {\mathrm{977}}^1$

素因数の和:1014

約数の個数: 220

約数和(自身を含む): 1453427316

約数和(自身を除く): 1048245876

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 512, 540, 576, 640, 648, 720, 768, 810, 864, 960, 977, 1024, 1080, 1152, 1280, 1296, 1440, 1536, 1620, 1728, 1920, 1954, 2160, 2304, 2560, 2592, 2880, 2931, 3072, 3240, 3456, 3840, 3908, 4320, 4608, 4885, 5120, 5184, 5760, 5862, 6480, 6912, 7680, 7816, 8640, 8793, 9216, 9770, 10368, 11520, 11724, 12960, 13824, 14655, 15360, 15632, 17280, 17586, 19540, 20736, 23040, 23448, 25920, 26379, 27648, 29310, 31264, 34560, 35172, 39080, 41472, 43965, 46080, 46896, 51840, 52758, 58620, 62528, 69120, 70344, 78160, 79137, 82944, 87930, 93792, 103680, 105516, 117240, 125056, 131895, 138240, 140688, 156320, 158274, 175860, 187584, 207360, 211032, 234480, 250112, 263790, 281376, 312640, 316548, 351720, 375168, 395685, 414720, 422064, 468960, 500224, 527580, 562752, 625280, 633096, 703440, 750336, 791370, 844128, 937920, 1000448, 1055160, 1125504, 1250560, 1266192, 1406880, 1500672, 1582740, 1688256, 1875840, 2110320, 2251008, 2501120, 2532384, 2813760, 3001344, 3165480, 3376512, 3751680, 4220640, 4502016, 5002240, 5064768, 5627520, 6330960, 6753024, 7503360, 8441280, 9004032, 10129536, 11255040, 12661920, 13506048, 15006720, 16882560, 20259072, 22510080, 25323840, 27012096, 33765120, 40518144, 45020160, 50647680, 67530240, 81036288, 101295360, 135060480, 202590720, 405181440]

約数ペア:

[(1, 405181440), (2, 202590720), (3, 135060480), (4, 101295360), (5, 81036288), (6, 67530240), (8, 50647680), (9, 45020160), (10, 40518144), (12, 33765120), (15, 27012096), (16, 25323840), (18, 22510080), (20, 20259072), (24, 16882560), (27, 15006720), (30, 13506048), (32, 12661920), (36, 11255040), (40, 10129536), (45, 9004032), (48, 8441280), (54, 7503360), (60, 6753024), (64, 6330960), (72, 5627520), (80, 5064768), (81, 5002240), (90, 4502016), (96, 4220640), (108, 3751680), (120, 3376512), (128, 3165480), (135, 3001344), (144, 2813760), (160, 2532384), (162, 2501120), (180, 2251008), (192, 2110320), (216, 1875840), (240, 1688256), (256, 1582740), (270, 1500672), (288, 1406880), (320, 1266192), (324, 1250560), (360, 1125504), (384, 1055160), (405, 1000448), (432, 937920), (480, 844128), (512, 791370), (540, 750336), (576, 703440), (640, 633096), (648, 625280), (720, 562752), (768, 527580), (810, 500224), (864, 468960), (960, 422064), (977, 414720), (1024, 395685), (1080, 375168), (1152, 351720), (1280, 316548), (1296, 312640), (1440, 281376), (1536, 263790), (1620, 250112), (1728, 234480), (1920, 211032), (1954, 207360), (2160, 187584), (2304, 175860), (2560, 158274), (2592, 156320), (2880, 140688), (2931, 138240), (3072, 131895), (3240, 125056), (3456, 117240), (3840, 105516), (3908, 103680), (4320, 93792), (4608, 87930), (4885, 82944), (5120, 79137), (5184, 78160), (5760, 70344), (5862, 69120), (6480, 62528), (6912, 58620), (7680, 52758), (7816, 51840), (8640, 46896), (8793, 46080), (9216, 43965), (9770, 41472), (10368, 39080), (11520, 35172), (11724, 34560), (12960, 31264), (13824, 29310), (14655, 27648), (15360, 26379), (15632, 25920), (17280, 23448), (17586, 23040), (19540, 20736)]