201640000

素因数分解:

$2^6\times 5^4\times {\mathrm{71}}^2$

素因数の和:174

約数の個数: 105

約数和(自身を含む): 507143131

約数和(自身を除く): 305503131

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 71, 80, 100, 125, 142, 160, 200, 250, 284, 320, 355, 400, 500, 568, 625, 710, 800, 1000, 1136, 1250, 1420, 1600, 1775, 2000, 2272, 2500, 2840, 3550, 4000, 4544, 5000, 5041, 5680, 7100, 8000, 8875, 10000, 10082, 11360, 14200, 17750, 20000, 20164, 22720, 25205, 28400, 35500, 40000, 40328, 44375, 50410, 56800, 71000, 80656, 88750, 100820, 113600, 126025, 142000, 161312, 177500, 201640, 252050, 284000, 322624, 355000, 403280, 504100, 568000, 630125, 710000, 806560, 1008200, 1260250, 1420000, 1613120, 2016400, 2520500, 2840000, 3150625, 4032800, 5041000, 6301250, 8065600, 10082000, 12602500, 20164000, 25205000, 40328000, 50410000, 100820000, 201640000]

約数ペア:

[(1, 201640000), (2, 100820000), (4, 50410000), (5, 40328000), (8, 25205000), (10, 20164000), (16, 12602500), (20, 10082000), (25, 8065600), (32, 6301250), (40, 5041000), (50, 4032800), (64, 3150625), (71, 2840000), (80, 2520500), (100, 2016400), (125, 1613120), (142, 1420000), (160, 1260250), (200, 1008200), (250, 806560), (284, 710000), (320, 630125), (355, 568000), (400, 504100), (500, 403280), (568, 355000), (625, 322624), (710, 284000), (800, 252050), (1000, 201640), (1136, 177500), (1250, 161312), (1420, 142000), (1600, 126025), (1775, 113600), (2000, 100820), (2272, 88750), (2500, 80656), (2840, 71000), (3550, 56800), (4000, 50410), (4544, 44375), (5000, 40328), (5041, 40000), (5680, 35500), (7100, 28400), (8000, 25205), (8875, 22720), (10000, 20164), (10082, 20000), (11360, 17750)]