639408120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{769}}^1$

素因数の和:850

約数の個数: 192

約数和(自身を含む): 2130559200

約数和(自身を除く): 1491151080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 41, 52, 60, 65, 78, 82, 104, 120, 123, 130, 156, 164, 169, 195, 205, 246, 260, 312, 328, 338, 390, 410, 492, 507, 520, 533, 615, 676, 769, 780, 820, 845, 984, 1014, 1066, 1230, 1352, 1538, 1560, 1599, 1640, 1690, 2028, 2132, 2307, 2460, 2535, 2665, 3076, 3198, 3380, 3845, 4056, 4264, 4614, 4920, 5070, 5330, 6152, 6396, 6760, 6929, 7690, 7995, 9228, 9997, 10140, 10660, 11535, 12792, 13858, 15380, 15990, 18456, 19994, 20280, 20787, 21320, 23070, 27716, 29991, 30760, 31529, 31980, 34645, 39988, 41574, 46140, 49985, 55432, 59982, 63058, 63960, 69290, 79976, 83148, 92280, 94587, 99970, 103935, 119964, 126116, 129961, 138580, 149955, 157645, 166296, 189174, 199940, 207870, 239928, 252232, 259922, 277160, 299910, 315290, 378348, 389883, 399880, 409877, 415740, 472935, 519844, 599820, 630580, 649805, 756696, 779766, 819754, 831480, 945870, 1039688, 1199640, 1229631, 1261160, 1299610, 1559532, 1639508, 1891740, 1949415, 2049385, 2459262, 2599220, 3119064, 3279016, 3783480, 3898830, 4098770, 4918524, 5198440, 5328401, 6148155, 7797660, 8197540, 9837048, 10656802, 12296310, 15595320, 15985203, 16395080, 21313604, 24592620, 26642005, 31970406, 42627208, 49185240, 53284010, 63940812, 79926015, 106568020, 127881624, 159852030, 213136040, 319704060, 639408120]

約数ペア:

[(1, 639408120), (2, 319704060), (3, 213136040), (4, 159852030), (5, 127881624), (6, 106568020), (8, 79926015), (10, 63940812), (12, 53284010), (13, 49185240), (15, 42627208), (20, 31970406), (24, 26642005), (26, 24592620), (30, 21313604), (39, 16395080), (40, 15985203), (41, 15595320), (52, 12296310), (60, 10656802), (65, 9837048), (78, 8197540), (82, 7797660), (104, 6148155), (120, 5328401), (123, 5198440), (130, 4918524), (156, 4098770), (164, 3898830), (169, 3783480), (195, 3279016), (205, 3119064), (246, 2599220), (260, 2459262), (312, 2049385), (328, 1949415), (338, 1891740), (390, 1639508), (410, 1559532), (492, 1299610), (507, 1261160), (520, 1229631), (533, 1199640), (615, 1039688), (676, 945870), (769, 831480), (780, 819754), (820, 779766), (845, 756696), (984, 649805), (1014, 630580), (1066, 599820), (1230, 519844), (1352, 472935), (1538, 415740), (1560, 409877), (1599, 399880), (1640, 389883), (1690, 378348), (2028, 315290), (2132, 299910), (2307, 277160), (2460, 259922), (2535, 252232), (2665, 239928), (3076, 207870), (3198, 199940), (3380, 189174), (3845, 166296), (4056, 157645), (4264, 149955), (4614, 138580), (4920, 129961), (5070, 126116), (5330, 119964), (6152, 103935), (6396, 99970), (6760, 94587), (6929, 92280), (7690, 83148), (7995, 79976), (9228, 69290), (9997, 63960), (10140, 63058), (10660, 59982), (11535, 55432), (12792, 49985), (13858, 46140), (15380, 41574), (15990, 39988), (18456, 34645), (19994, 31980), (20280, 31529), (20787, 30760), (21320, 29991), (23070, 27716)]