305655280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1249}}^1$

素因数の和:1311

約数の個数: 160

約数和(自身を含む): 892800000

約数和(自身を除く): 587144720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 23, 28, 35, 38, 40, 46, 56, 70, 76, 80, 92, 95, 112, 115, 133, 140, 152, 161, 184, 190, 230, 266, 280, 304, 322, 368, 380, 437, 460, 532, 560, 644, 665, 760, 805, 874, 920, 1064, 1249, 1288, 1330, 1520, 1610, 1748, 1840, 2128, 2185, 2498, 2576, 2660, 3059, 3220, 3496, 4370, 4996, 5320, 6118, 6245, 6440, 6992, 8740, 8743, 9992, 10640, 12236, 12490, 12880, 15295, 17480, 17486, 19984, 23731, 24472, 24980, 28727, 30590, 34960, 34972, 43715, 47462, 48944, 49960, 57454, 61180, 69944, 87430, 94924, 99920, 114908, 118655, 122360, 139888, 143635, 166117, 174860, 189848, 201089, 229816, 237310, 244720, 287270, 332234, 349720, 379696, 402178, 459632, 474620, 545813, 574540, 664468, 699440, 804356, 830585, 949240, 1005445, 1091626, 1149080, 1328936, 1608712, 1661170, 1898480, 2010890, 2183252, 2298160, 2657872, 2729065, 3217424, 3322340, 3820691, 4021780, 4366504, 5458130, 6644680, 7641382, 8043560, 8733008, 10916260, 13289360, 15282764, 16087120, 19103455, 21832520, 30565528, 38206910, 43665040, 61131056, 76413820, 152827640, 305655280]

約数ペア:

[(1, 305655280), (2, 152827640), (4, 76413820), (5, 61131056), (7, 43665040), (8, 38206910), (10, 30565528), (14, 21832520), (16, 19103455), (19, 16087120), (20, 15282764), (23, 13289360), (28, 10916260), (35, 8733008), (38, 8043560), (40, 7641382), (46, 6644680), (56, 5458130), (70, 4366504), (76, 4021780), (80, 3820691), (92, 3322340), (95, 3217424), (112, 2729065), (115, 2657872), (133, 2298160), (140, 2183252), (152, 2010890), (161, 1898480), (184, 1661170), (190, 1608712), (230, 1328936), (266, 1149080), (280, 1091626), (304, 1005445), (322, 949240), (368, 830585), (380, 804356), (437, 699440), (460, 664468), (532, 574540), (560, 545813), (644, 474620), (665, 459632), (760, 402178), (805, 379696), (874, 349720), (920, 332234), (1064, 287270), (1249, 244720), (1288, 237310), (1330, 229816), (1520, 201089), (1610, 189848), (1748, 174860), (1840, 166117), (2128, 143635), (2185, 139888), (2498, 122360), (2576, 118655), (2660, 114908), (3059, 99920), (3220, 94924), (3496, 87430), (4370, 69944), (4996, 61180), (5320, 57454), (6118, 49960), (6245, 48944), (6440, 47462), (6992, 43715), (8740, 34972), (8743, 34960), (9992, 30590), (10640, 28727), (12236, 24980), (12490, 24472), (12880, 23731), (15295, 19984), (17480, 17486)]