201621760

素因数分解:

$2^8\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2351}}^1$

素因数の和:2439

約数の個数: 72

約数和(自身を含む): 490363776

約数和(自身を除く): 288742016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 256, 268, 320, 335, 536, 640, 670, 1072, 1280, 1340, 2144, 2351, 2680, 4288, 4702, 5360, 8576, 9404, 10720, 11755, 17152, 18808, 21440, 23510, 37616, 42880, 47020, 75232, 85760, 94040, 150464, 157517, 188080, 300928, 315034, 376160, 601856, 630068, 752320, 787585, 1260136, 1504640, 1575170, 2520272, 3009280, 3150340, 5040544, 6300680, 10081088, 12601360, 20162176, 25202720, 40324352, 50405440, 100810880, 201621760]

約数ペア:

[(1, 201621760), (2, 100810880), (4, 50405440), (5, 40324352), (8, 25202720), (10, 20162176), (16, 12601360), (20, 10081088), (32, 6300680), (40, 5040544), (64, 3150340), (67, 3009280), (80, 2520272), (128, 1575170), (134, 1504640), (160, 1260136), (256, 787585), (268, 752320), (320, 630068), (335, 601856), (536, 376160), (640, 315034), (670, 300928), (1072, 188080), (1280, 157517), (1340, 150464), (2144, 94040), (2351, 85760), (2680, 75232), (4288, 47020), (4702, 42880), (5360, 37616), (8576, 23510), (9404, 21440), (10720, 18808), (11755, 17152)]