221201360

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{21107}}^1$

素因数の和:21251

約数の個数: 40

約数和(自身を含む): 518243616

約数和(自身を除く): 297042256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 10480, 21107, 42214, 84428, 105535, 168856, 211070, 337712, 422140, 844280, 1688560, 2765017, 5530034, 11060068, 13825085, 22120136, 27650170, 44240272, 55300340, 110600680, 221201360]

約数ペア:

[(1, 221201360), (2, 110600680), (4, 55300340), (5, 44240272), (8, 27650170), (10, 22120136), (16, 13825085), (20, 11060068), (40, 5530034), (80, 2765017), (131, 1688560), (262, 844280), (524, 422140), (655, 337712), (1048, 211070), (1310, 168856), (2096, 105535), (2620, 84428), (5240, 42214), (10480, 21107)]