20160117160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{313}}^1\times {\mathrm{409}}^1$

素因数の和:891

約数の個数: 128

約数和(自身を含む): 47458713600

約数和(自身を除く): 27298596440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 127, 155, 248, 254, 310, 313, 409, 508, 620, 626, 635, 818, 1016, 1240, 1252, 1270, 1565, 1636, 2045, 2504, 2540, 3130, 3272, 3937, 4090, 5080, 6260, 7874, 8180, 9703, 12520, 12679, 15748, 16360, 19406, 19685, 25358, 31496, 38812, 39370, 39751, 48515, 50716, 51943, 63395, 77624, 78740, 79502, 97030, 101432, 103886, 126790, 128017, 157480, 159004, 194060, 198755, 207772, 253580, 256034, 259715, 318008, 388120, 397510, 415544, 507160, 512068, 519430, 640085, 795020, 1024136, 1038860, 1232281, 1280170, 1590040, 1610233, 2077720, 2464562, 2560340, 3220466, 3968527, 4929124, 5120680, 6161405, 6440932, 7937054, 8051165, 9858248, 12322810, 12881864, 15874108, 16102330, 16258159, 19842635, 24645620, 31748216, 32204660, 32516318, 39685270, 49291240, 64409320, 65032636, 79370540, 81290795, 130065272, 158741080, 162581590, 325163180, 504002929, 650326360, 1008005858, 2016011716, 2520014645, 4032023432, 5040029290, 10080058580, 20160117160]

約数ペア:

[(1, 20160117160), (2, 10080058580), (4, 5040029290), (5, 4032023432), (8, 2520014645), (10, 2016011716), (20, 1008005858), (31, 650326360), (40, 504002929), (62, 325163180), (124, 162581590), (127, 158741080), (155, 130065272), (248, 81290795), (254, 79370540), (310, 65032636), (313, 64409320), (409, 49291240), (508, 39685270), (620, 32516318), (626, 32204660), (635, 31748216), (818, 24645620), (1016, 19842635), (1240, 16258159), (1252, 16102330), (1270, 15874108), (1565, 12881864), (1636, 12322810), (2045, 9858248), (2504, 8051165), (2540, 7937054), (3130, 6440932), (3272, 6161405), (3937, 5120680), (4090, 4929124), (5080, 3968527), (6260, 3220466), (7874, 2560340), (8180, 2464562), (9703, 2077720), (12520, 1610233), (12679, 1590040), (15748, 1280170), (16360, 1232281), (19406, 1038860), (19685, 1024136), (25358, 795020), (31496, 640085), (38812, 519430), (39370, 512068), (39751, 507160), (48515, 415544), (50716, 397510), (51943, 388120), (63395, 318008), (77624, 259715), (78740, 256034), (79502, 253580), (97030, 207772), (101432, 198755), (103886, 194060), (126790, 159004), (128017, 157480)]