205784820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:715

約数の個数: 192

約数和(自身を含む): 696729600

約数和(自身を除く): 490944780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 31, 36, 38, 45, 54, 57, 60, 62, 76, 90, 93, 95, 108, 114, 124, 135, 155, 171, 180, 186, 190, 228, 270, 279, 285, 310, 342, 372, 380, 465, 513, 540, 558, 570, 589, 620, 647, 684, 837, 855, 930, 1026, 1116, 1140, 1178, 1294, 1395, 1674, 1710, 1767, 1860, 1941, 2052, 2356, 2565, 2588, 2790, 2945, 3235, 3348, 3420, 3534, 3882, 4185, 5130, 5301, 5580, 5823, 5890, 6470, 7068, 7764, 8370, 8835, 9705, 10260, 10602, 11646, 11780, 12293, 12940, 15903, 16740, 17469, 17670, 19410, 20057, 21204, 23292, 24586, 26505, 29115, 31806, 34938, 35340, 36879, 38820, 40114, 49172, 53010, 58230, 60171, 61465, 63612, 69876, 73758, 79515, 80228, 87345, 100285, 106020, 110637, 116460, 120342, 122930, 147516, 159030, 174690, 180513, 184395, 200570, 221274, 240684, 245860, 300855, 318060, 331911, 349380, 361026, 368790, 381083, 401140, 442548, 541539, 553185, 601710, 663822, 722052, 737580, 762166, 902565, 1083078, 1106370, 1143249, 1203420, 1327644, 1524332, 1659555, 1805130, 1905415, 2166156, 2212740, 2286498, 2707695, 3319110, 3429747, 3610260, 3810830, 4572996, 5415390, 5716245, 6638220, 6859494, 7621660, 10289241, 10830780, 11432490, 13718988, 17148735, 20578482, 22864980, 34297470, 41156964, 51446205, 68594940, 102892410, 205784820]

約数ペア:

[(1, 205784820), (2, 102892410), (3, 68594940), (4, 51446205), (5, 41156964), (6, 34297470), (9, 22864980), (10, 20578482), (12, 17148735), (15, 13718988), (18, 11432490), (19, 10830780), (20, 10289241), (27, 7621660), (30, 6859494), (31, 6638220), (36, 5716245), (38, 5415390), (45, 4572996), (54, 3810830), (57, 3610260), (60, 3429747), (62, 3319110), (76, 2707695), (90, 2286498), (93, 2212740), (95, 2166156), (108, 1905415), (114, 1805130), (124, 1659555), (135, 1524332), (155, 1327644), (171, 1203420), (180, 1143249), (186, 1106370), (190, 1083078), (228, 902565), (270, 762166), (279, 737580), (285, 722052), (310, 663822), (342, 601710), (372, 553185), (380, 541539), (465, 442548), (513, 401140), (540, 381083), (558, 368790), (570, 361026), (589, 349380), (620, 331911), (647, 318060), (684, 300855), (837, 245860), (855, 240684), (930, 221274), (1026, 200570), (1116, 184395), (1140, 180513), (1178, 174690), (1294, 159030), (1395, 147516), (1674, 122930), (1710, 120342), (1767, 116460), (1860, 110637), (1941, 106020), (2052, 100285), (2356, 87345), (2565, 80228), (2588, 79515), (2790, 73758), (2945, 69876), (3235, 63612), (3348, 61465), (3420, 60171), (3534, 58230), (3882, 53010), (4185, 49172), (5130, 40114), (5301, 38820), (5580, 36879), (5823, 35340), (5890, 34938), (6470, 31806), (7068, 29115), (7764, 26505), (8370, 24586), (8835, 23292), (9705, 21204), (10260, 20057), (10602, 19410), (11646, 17670), (11780, 17469), (12293, 16740), (12940, 15903)]