209205760

素因数分解:

$2^9\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1151}}^1$

素因数の和:1245

約数の個数: 80

約数和(自身を含む): 509110272

約数和(自身を除く): 299904512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 284, 320, 355, 512, 568, 640, 710, 1136, 1151, 1280, 1420, 2272, 2302, 2560, 2840, 4544, 4604, 5680, 5755, 9088, 9208, 11360, 11510, 18176, 18416, 22720, 23020, 36352, 36832, 45440, 46040, 73664, 81721, 90880, 92080, 147328, 163442, 181760, 184160, 294656, 326884, 368320, 408605, 589312, 653768, 736640, 817210, 1307536, 1473280, 1634420, 2615072, 2946560, 3268840, 5230144, 6537680, 10460288, 13075360, 20920576, 26150720, 41841152, 52301440, 104602880, 209205760]

約数ペア:

[(1, 209205760), (2, 104602880), (4, 52301440), (5, 41841152), (8, 26150720), (10, 20920576), (16, 13075360), (20, 10460288), (32, 6537680), (40, 5230144), (64, 3268840), (71, 2946560), (80, 2615072), (128, 1634420), (142, 1473280), (160, 1307536), (256, 817210), (284, 736640), (320, 653768), (355, 589312), (512, 408605), (568, 368320), (640, 326884), (710, 294656), (1136, 184160), (1151, 181760), (1280, 163442), (1420, 147328), (2272, 92080), (2302, 90880), (2560, 81721), (2840, 73664), (4544, 46040), (4604, 45440), (5680, 36832), (5755, 36352), (9088, 23020), (9208, 22720), (11360, 18416), (11510, 18176)]