180340000

素因数分解:

$2^5\times 5^4\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:228

約数の個数: 120

約数和(自身を含む): 453454848

約数和(自身を除く): 273114848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 71, 80, 100, 125, 127, 142, 160, 200, 250, 254, 284, 355, 400, 500, 508, 568, 625, 635, 710, 800, 1000, 1016, 1136, 1250, 1270, 1420, 1775, 2000, 2032, 2272, 2500, 2540, 2840, 3175, 3550, 4000, 4064, 5000, 5080, 5680, 6350, 7100, 8875, 9017, 10000, 10160, 11360, 12700, 14200, 15875, 17750, 18034, 20000, 20320, 25400, 28400, 31750, 35500, 36068, 44375, 45085, 50800, 56800, 63500, 71000, 72136, 79375, 88750, 90170, 101600, 127000, 142000, 144272, 158750, 177500, 180340, 225425, 254000, 284000, 288544, 317500, 355000, 360680, 450850, 508000, 635000, 710000, 721360, 901700, 1127125, 1270000, 1420000, 1442720, 1803400, 2254250, 2540000, 3606800, 4508500, 5635625, 7213600, 9017000, 11271250, 18034000, 22542500, 36068000, 45085000, 90170000, 180340000]

約数ペア:

[(1, 180340000), (2, 90170000), (4, 45085000), (5, 36068000), (8, 22542500), (10, 18034000), (16, 11271250), (20, 9017000), (25, 7213600), (32, 5635625), (40, 4508500), (50, 3606800), (71, 2540000), (80, 2254250), (100, 1803400), (125, 1442720), (127, 1420000), (142, 1270000), (160, 1127125), (200, 901700), (250, 721360), (254, 710000), (284, 635000), (355, 508000), (400, 450850), (500, 360680), (508, 355000), (568, 317500), (625, 288544), (635, 284000), (710, 254000), (800, 225425), (1000, 180340), (1016, 177500), (1136, 158750), (1250, 144272), (1270, 142000), (1420, 127000), (1775, 101600), (2000, 90170), (2032, 88750), (2272, 79375), (2500, 72136), (2540, 71000), (2840, 63500), (3175, 56800), (3550, 50800), (4000, 45085), (4064, 44375), (5000, 36068), (5080, 35500), (5680, 31750), (6350, 28400), (7100, 25400), (8875, 20320), (9017, 20000), (10000, 18034), (10160, 17750), (11360, 15875), (12700, 14200)]