208621920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{499}}^1$

素因数の和:597

約数の個数: 192

約数和(自身を含む): 719712000

約数和(自身を除く): 511090080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 67, 78, 80, 96, 104, 120, 130, 134, 156, 160, 195, 201, 208, 240, 260, 268, 312, 335, 390, 402, 416, 480, 499, 520, 536, 624, 670, 780, 804, 871, 998, 1005, 1040, 1072, 1248, 1340, 1497, 1560, 1608, 1742, 1996, 2010, 2080, 2144, 2495, 2613, 2680, 2994, 3120, 3216, 3484, 3992, 4020, 4355, 4990, 5226, 5360, 5988, 6240, 6432, 6487, 6968, 7485, 7984, 8040, 8710, 9980, 10452, 10720, 11976, 12974, 13065, 13936, 14970, 15968, 16080, 17420, 19461, 19960, 20904, 23952, 25948, 26130, 27872, 29940, 32160, 32435, 33433, 34840, 38922, 39920, 41808, 47904, 51896, 52260, 59880, 64870, 66866, 69680, 77844, 79840, 83616, 97305, 100299, 103792, 104520, 119760, 129740, 133732, 139360, 155688, 167165, 194610, 200598, 207584, 209040, 239520, 259480, 267464, 311376, 334330, 389220, 401196, 418080, 434629, 501495, 518960, 534928, 622752, 668660, 778440, 802392, 869258, 1002990, 1037920, 1069856, 1303887, 1337320, 1556880, 1604784, 1738516, 2005980, 2173145, 2607774, 2674640, 3113760, 3209568, 3477032, 4011960, 4346290, 5215548, 5349280, 6519435, 6954064, 8023920, 8692580, 10431096, 13038870, 13908128, 16047840, 17385160, 20862192, 26077740, 34770320, 41724384, 52155480, 69540640, 104310960, 208621920]

約数ペア:

[(1, 208621920), (2, 104310960), (3, 69540640), (4, 52155480), (5, 41724384), (6, 34770320), (8, 26077740), (10, 20862192), (12, 17385160), (13, 16047840), (15, 13908128), (16, 13038870), (20, 10431096), (24, 8692580), (26, 8023920), (30, 6954064), (32, 6519435), (39, 5349280), (40, 5215548), (48, 4346290), (52, 4011960), (60, 3477032), (65, 3209568), (67, 3113760), (78, 2674640), (80, 2607774), (96, 2173145), (104, 2005980), (120, 1738516), (130, 1604784), (134, 1556880), (156, 1337320), (160, 1303887), (195, 1069856), (201, 1037920), (208, 1002990), (240, 869258), (260, 802392), (268, 778440), (312, 668660), (335, 622752), (390, 534928), (402, 518960), (416, 501495), (480, 434629), (499, 418080), (520, 401196), (536, 389220), (624, 334330), (670, 311376), (780, 267464), (804, 259480), (871, 239520), (998, 209040), (1005, 207584), (1040, 200598), (1072, 194610), (1248, 167165), (1340, 155688), (1497, 139360), (1560, 133732), (1608, 129740), (1742, 119760), (1996, 104520), (2010, 103792), (2080, 100299), (2144, 97305), (2495, 83616), (2613, 79840), (2680, 77844), (2994, 69680), (3120, 66866), (3216, 64870), (3484, 59880), (3992, 52260), (4020, 51896), (4355, 47904), (4990, 41808), (5226, 39920), (5360, 38922), (5988, 34840), (6240, 33433), (6432, 32435), (6487, 32160), (6968, 29940), (7485, 27872), (7984, 26130), (8040, 25948), (8710, 23952), (9980, 20904), (10452, 19960), (10720, 19461), (11976, 17420), (12974, 16080), (13065, 15968), (13936, 14970)]